Apple (AAPL) continues to bring the iPhone to countries outside the U.S. Although its launch in China didn't generate as much fanfare as the company had hoped, things take time to roll into a big ball of success. Apple won't be slowing down international introductions of the handset that changed the wireless game, that's for sure.

As such, South Korea's own LG Electronics and Samsung Electronics are about to see their homeland assaulted by the official introduction of the iPhone for sale into that country. South Korea's KT Corp. and SK Telecom are the reported carriers for Apple's iPhone there, and although the South Korean market may seem like a small potato of opportunity for Apple, the company has been cleared by the Korean Communications Commission to start selling its popular handset.

Google (GOOG) and Apple (AAPL) were once favorite friends. When Google CEO Eric Schmidt resigned from Apple's board of directors, though, the gloves came off. With Apple's venerable and extremely popular iPhone selling for $99 (for the base edition), Google's "Android" phones -- made by several manufacturers and sold by many carriers -- have not matched those low Apple prices. Not any more.

Consumer electronics retailer Best Buy (BBY) is selling the Samsung Moment and the HTC Hero for $99 through December -- matching Apple's iPhone pricing for a two-year contract. That's with no rebates, either. So, the question is this: will Google's Android-powered phones start gaining traction on the iPhone? With AT&T's (T) penchant for poor service and for exorbitant calling plan prices, this may be enough to get those on the iPhone fence switching over to a touchscreen Android phone.

The recession has led everyone with a budget to question ever line. From households to businesses to state and federal governments, nothing is sacred. Finding new ways to get the same result without spending the same amount mean not having to make sacrifices. NASA has been under considerable financial pressure, as many question the value of sinking cash into space travel. So, it has to get creative in justifying its existence ... and in generating excitement about the agency and what it does.

When the space shuttle launches on Monday, 200 thumbs will be at the ready. NASA has deputized 100 of its top fans on Twitter to come to the launch and tweet the experience. These fans are estimated to have more than 150,000 followers, all with the potential to retweet the messages they see. Every click of an iPhone or Blackberry will give NASA more exposure, building the excitement it needs to keep the operation afloat. So, whether you realize it or not, the launch is being brought to you by Twitter, Apple (AAPL) and Research in Motion (RIMM), even if only implicitly.

BT Group, which virtually owns the UK telecommunications market, isn't waiting for Google (GOOG) to launch a full attack. The company probably expects to be under assault from the search engine (and advertising and e-mail) giant, so it's taking early action. Google Voice is still being tested, but words like "free" and "powerful" and "internet-based" are bound to inspire fear in even the most established of companies.

To protect itself from the eventual attack from Mountain View, BT picked up Ribbit Mobile, and testing is in progress. Ribbit's technology has some overlap with Google Voice and even beats it with a few capabilities, according to Bloomberg. Ribbit just launched its beta product this month. It allows either the user's current phone number or a new one from Ribbit -- which is no different from Google's alternative. The product suite is generally the same, with phone- and web-based voicemail retrieval and automatic transcriptions that can be sent by text message or e-mail. For an extra fee, BT's Ribbit does provide human transcription, though it is free during testing. And, calls can be taken directly from a computer, using a microphone and speakers.

Apple (AAPL) has been dominating the domestic market over the past few years, and its products and innovations have been huge successes. The latest winner is the iPhone smart phone.

Now, with a weak dollar, look for sales of this fantastic product to explode across the globe. If you think the success domestically is something, wait to see what sales do overseas.

Last week, under the guise of betting on America, Warren Buffett and his Berkshire Hathaway (BRK.A) made an offer to buy all outstanding shares of Burlington Northern (BNI) for a significant premium.

In making the announcement, Buffett confidently claimed that rail would play a big role in the recovery of the economy. What he did not say was that this was a bet on the U.S. dollar.

The future investment stars are already with us. The NYSE Financial Future Challenge, operated by the NYSE Foundation, By Kids for Kids, K12 Inc. and the United Investors Association, is in full swing, with five finalists just identified. To reach this level, the participants had to develop a new product, idea or process that would "excite, educate and motivate their peers" to become interested in the financial marketplace. The eventual winner lurks within this subset and will receive a $2,500 prize -- a great way to get that portfolio started. And, he or she will be feted at a closing bell ceremony at the NYSE (NYX) on January 11, 2010.

The finalists presented a variety of ideas which are sure to generate some buzz. Kelsey Foss, a 12-year-old from Mountainville, NY, proposed a new television show, "Stock Market Tycoon Idol," which would harness the popularity of reality TV while amping up the content. The program would involve the journeys of 10 kids as they seek to make money or lose it, with the possibility of becoming virtual millionaires along the way. The show would be set at a mock NYSE studio on Wall Street, and exports would be brought out to mentor the contestants. The reality TV reach would help engage a younger audience.

Even the thought is hard to believe for anyone who's been watching Apple Inc. (AAPL) over the long run. Once upon a time, the company was presumed dead, while Microsoft Corporation (MSFT) continued its march to market dominance. Today, Apple's $180 billion market value is evidence of a new era. Though it's still behind Microsoft's $250 billion, the company's rapid ascent and substantial market presence make at least speculation of catching up to the Redmond giant worth a few minutes of thought.

Microsoft is currently the most valuable technology company in the world, according to a Reuters report. Even Google, Inc (GOOG), with its astounding brand recognition and position as gateway to the internet, is worth "only" $136 billion. Apple, which was once considered a computer company that sold into education and appealed to some graphics geeks, has reasserted itself as a major global presence.

While attending the MBA program at the Wharton School, Omar Hamoui was trying to solve a big problem. Basically, he wanted to find a way to get advertising revenues from his mobile site. Then he realized that many other sites probably had the same problem. So why not start a company to solve the problem?

That what he did, creating AdMob (yes, he is still on leave from Wharton). And, it was a great move. Today, Google (GOOG) agreed to buy AdMob for a cool $750 million in stock.

The Twitter ecosystem may be changing constantly, but most of that comes on the back of individual developers and outside companies. They beat on Twitter APIs to create new products that may win them glory, recognition or cash. Over the past month, though, Twitter itself has gotten into the game, releasing or announcing a handful of new features.

A new function for "retweeting" (echoing another's tweet to your own followers), changes to how trending topics are managed, and the ability to create lists are new tools intended to engage users ... on the Twitter.com website. Considered within the context of Twitter's changed terms of service this year, the upgrades may be part of a broader ad-based revenue plan.

While Sprint Nextel Corp. (NYSE: S) continues losing hundreds of thousands of customers every quarter, it has actually raised the bar on offering cutting-edge smartphones at the same time. Smartphones, which are slowly but surely replacing the standard cellphone for the typical "always need to be connected" consumer, are helping wireless carriers drum up wireless data revenue to replace the lost voice revenue as customers talk less.

While eBay (NASDAQ: EBAY) has been working hard to manage its marketplace in a trying economy, its PayPayl business has been growing comfortably and could become the company's biggest earner. For the past two years, eBay has focused on improving the look of its website and helping buyers and sellers to get along in a virtual world built entirely on trust.

In the background, though, the segment of the business that moves money from Point A to Point B has been on fire. Even with payment processing competition from Amazon (NASDAQ: AMZN) and Google (NASDAQ: GOOG), PayPal has been able to do more than hold its own.

Best Buy (NYSE: BBY) may be the world's largest electronics retailer, but it realizes that it faces a huge threat to a hefty chunk of its business. Apple (NASDAQ: AAPL) is moving plenty of movies and other soon-to-be former DVD fare through iTunes, staking a claim on a business that once belonged to Best Buy. The big box store is getting ready to fight back (finally?).

Using technology it's licensing from Sonic Solutions (NASDAQ: SNIC), Best Buy is opening an online store for movies and television shows. Best Buy CEO Brian Dunn says this move will expand the company's presence in services and will bolster company loyalty. That's the press release version, of course. The reality is that Best Buy needed to do something to protect this portion of its revenue and probably should have made the move several years ago.

Apple Inc.'s (NASDAQ: AAPL) iPhone has been selling like gangbusters in the U.S. since its debut in June 2007, but that kind of fever -- and the fever U.S. consumers felt at every iPhone launch in the U.S. -- seemed tepid by comparison when China Unicom unleashed the iPhone for sale last week.

Although Microsoft Corp. (NASDAQ: MSFT) has much of the business world wrapped around at least some of its software, the largest software company in the world is mostly known for its consumer products. Names like Windows, Zune, Windows Mobile, Sidekick, and Xbox are household terms (well, in gadget households perhaps).

Still, with all those names, why hasn't Microsoft formed some kind of overall consumer ecosystem so that all these products fit, work, and play together seamlessly?