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.

Founded in 1999, TeleNav was one of the first companies to deploy GPS navigation on a cell phone in North America. Now, the company has more than 11 million paying end users.

What's next? TeleNav has filed for an IPO.

The flagship of the company is the GPS Navigator, which is more than just a GPS device with cool features like real-time traffic alerts, weather content, route-planning and so on.

It goes without saying that one investment theme favored here concerns companies with demonstrated business models, which is why I'm Reiterating my Buy rating for AT&T (NYSE: T), first recommended on July 9, 2009 at a price of $25.89.

AT&T's shares have meandered somewhat since the February Buy rating, but that in no way changes T's low-risk, decent-return-on-equity story.

AT&T (NYSE: T) fell from a high of almost $43 to less than $22 in a little over a year. T formed a long-term bottom, finally breaking out at $27 after executing a gold cross (confirmation of a long-term bull market).

But profit-taking in the past two weeks has caused a retrenchment back to support at $26.50.

The stock could pull back more, but its high quality and visibility make this the bluest of blue chip stocks, with a dividend yield of more than 6% and a strong buy recommendation by S&P (five stars).

AT&T Inc. (NYSE: T) has seen massive negative publicity come in from earlier in the summer to know in regards to its policies on the Apple Inc. (NASDAQ: AAPL) iPhone it currently has an exclusive on. After all, that $99 or $199 purchase was not giving customers complete control over over the freedom to do what they wanted with those precious iPhones.

When the AT&T/Google/Apple situation flared up recently, it caused the microscope on AT&T's strict controls on the iPhone to become even more intense.

According to USA Today, Apple (NASDAQ: AAPL) and AT&T (NYSE: T) are expected to saunter up to the Federal Communications Commission (FCC) and explain why they will not allow Google's (NASDAQ: GOOG) free Google Voice application on the iPhone.

The problem is that Google is throwing stones while it lives in a glass house. Let me explain here -- Google has done the same thing to Skype when it blocked it from use with Google Android. This is truly the pot calling the kettle black, as Google is getting a taste of its own medicine. The question is, why can't these kids get together and play nice?

TheStreet.com's Jim Cramer says if the company you're looking at is a player in the mobile Internet space, it's probably a good bet.

Does it have smartphone exposure, or doesn't it? That is the question. When I look at what's moving in tech and what's become sullen and gloomy, there's only one compass: smartphones. Think about what's moved this week: Cree (NASDAQ: CREE) (Cramer's Take), Tellabs (NASDAQ: TLAB) (Cramer's Take) and ADC Telecom (NASDAQ: ADCT) (Cramer's Take). These are terrific plays in the smartphone food chain and are included in the "Mad Money" Mobile Internet Index.

ADC Telecom is Chinese Internet infrastructure, and we know that China's spending $40 billion to build out infrastructure that can allow aggressive adoption of smartphones. Tellabs has been waiting for next-generation telecom orders -- smartphones. I think the fact that it announced a giant buyback -- it matters when the stock is this small -- is the signal needed to suggest they are getting orders.

When AT&T, Inc. (NYSE: T) announced that it would feature $3 per day unlimited calling with its prepaid wireless service called GoPhone, it was hard to see the point. After all, competitors in the wireless prepaid space, such as Sprint Nextel Corp.'s (NYSE: S) Boot Mobile brand, already offer unlimited calling for $50 per month. That's all day, every day calling with no long distance or wireless roaming charges.

TheStreet.com's Jim Cramer says if you wait for market conditions to reach perfection, you'll be waiting a long time.

You know what? I am going to wait until I am sure housing has turned before I buy the homebuilders like Lennar (NYSE: LEN) (Cramer's Take) and Pulte (NYSE: PHM) (Cramer's Take). I am going to wait until the foreclosures peak before I buy Bank of America (NYSE: BAC) (Cramer's Take) and Wells Fargo (NYSE: WFC) (Cramer's Take).

I am going to wait until unemployment goes down before I buy 3M (NYSE: MMM) (Cramer's Take) and Disney (NYSE: DIS) (Cramer's Take) and IBM (NYSE: IBM) (Cramer's Take) and Caterpillar (NYSE: CAT) (Cramer's Take).

The only DOW component reporting earnings this morning is Verizon Communications (NYSE: VZ). The nation's largest wireless carrier reported second quarter numbers that fell inline with analyst estimates.

Going into this morning's earnings report, analysts polled by Thompson Financial expected Verizon to earn 63 cents per share. Excluding merger and various one-time labor costs, Verizon was able to match that number.

Nothing is worse than repeating past mistakes. Despite the awful economy, my newest portfolio is doing better than any other since 1999-2000, actually passing a 100% gain recently, although it has dropped back slightly with the market the past few trading days.

Ten years is recent enough for me to remember giving everything back and then some. I'm not doing that again. But what to do? I certainly do not like sitting with a heavy cash position collecting almost nothing. I have recently discussed this issue, see: Serious Money: ETF that's better than cash.

The solution is to find stocks that have low volatility, high yields, and the recurring revenue and strong cash flow to maintain the yield. Long term investors will not be surprised by my search leading me to AT and T (NYSE: T) and Verizon Communications (NYSE: VZ), the two largest communications companies in the land.

A race has broken out for Data Domain Inc (NASDAQ: DDUP). NetApp Inc. (NASDAQ: NTAP) offered $1.5 billion for the company two weeks ago, and EMC Corp. (NYSE: EMC) decided it had to get in on the action, upping the ante to $1.8 billion yesterday. Data Domain shares gained 16% on the news in late trading yesterday, resulting in EMC's bid carrying a 17% premium.

EMC sees Data Domain as its ticket into the market for software-based storage management, as the target company's products help reduce the amount of disk space needed to store data. With large, high-profile clients like AT&T Inc. (NYSE: T) and the U.S. Defense Department, Data Domain was able to double its top line to $274 million in 2008. It pulled in net income of $21.6 million last year, up from a loss of $3.7 million in 2007.

Apple, Inc.'s (NASDAQ: AAPL) iPhone 3G has admittedly caused problems for wireless partner AT&T, Inc. (NYSE: T). Little did AT&T know that so many iPhones would be sold and so much data would be pumped over its wireless network.

What would happen if a newer iPhone was announced and released this year that featured front-facing camera videoconferencing? Would the millions of iPhone users start sending out even more bucketloads of data doing a ton of live video over their iPhones?

Analyst upgrades:

• Morgan Stanley said Bank of America's (NYSE: BAC) capital needs are largely known and shares are trading "cheaply despite reduced downside risk." The firm upgraded shares to Overweight from Underweight and raised the price target to $25 from $16. Shares were also upgraded to Outperform from Neutral at Baird citing manageable capital needs and attractive risk/reward.
  
• Keefe Bruyette upgraded Fifth Third Bancorp (NASDAQ: FITB) to Outperform from Market Perform on valuation as it views the stock as inexpensive despite the recent rally. The firm has an $8 target on the stock.
• Banc of America/Merrill upgraded Ericsson (NASDAQ: ERIC) to Buy from Neutral as it believes fewer hedging losses could bring upside over the next few quarters.
• Rio Tinto (NYSE: RTP) was raised to Overweight from Neutral at Barclays.
  
• EnerNOC (NASDAQ: ENOC) was lifted to Buy from Neutral at Janney Montgomery.
  
• Westpac Banking (NYSE: WBK) was upgraded to Neutral from Underperform at Credit Suisse.

Sprint Nextel Corp. (NYSE: S), the trying to be the"comeback kid" under CEO and telecom vet Dan Hesse, just lost another swath of customers in its latest quarter. The company reported almost an almost $600 million net loss in its latest quarter as its postpaid (contract) customers continue to defect to the competition.

All in all, this quarter wasn't as bad for Sprint as previous quarters. The third-largest wireless carrier in the U.S lost 182,000 wireless customers last quarter, leaving it with under 50 million total wireless customers. Still, the last quarter of 2008 saw Sprint lose about 1.3 million customers, so this past quarter was quite the marked improvement.