We have seen this play before, and there are two scenarios as to how it could end. Starbucks Corporation (NASDAQ: SBUX) is being challenged like never before, having saturated the market place in some locations it is now facing the challenges of selling expensive coffee in a slowing economy.

Would you rather pay $4 for a cup of coffee or a gallon of gas? You can find cheaper coffee but you have few options to find cheaper fuel. Amid the already difficult operating environment Starbucks is faced with competition from the largest restaurant chain in the world, McDonald's Corporation (NYSE: MCD). McDonald's is looking to steal its morning thunder with competitive offerings at a far lower pricing structure. The threat is very real no matter what spin Starbucks puts on it.

This brings to mind two similar situations both involving Microsoft Corporation (NASDAQ: MSFT) and past competitors. Early on there were two word processing programs that together probably had 90% market share. Those were Wordperfect and Wordstar. Both of them were fine programs offering strong features, and now they are nowhere. Microsoft displaced both of them with MS-Word integrated with their Office suite of products, and is now king.

I have a bitter-sweet relationship with Adobe Systems Incorporated (Nasdaq: ADBE). I think they build great technology. In fact, I've been a customer of their Dreamweaver product since 2000. It's an awesome offering -- and gets better and better.

Yet, when it comes to Adobe's upgrade policies, they often fall short -- at least for me. For example today they wanted to charge me full price for a product that I've bought and upgraded several times over the years.

Oh, well. End of my rant.

The fact remains that Adobe continues to innovate. Interestingly, the company has recently announced a variety of initiatives. For example, Adobe is sponsoring the SQLite database open source project (according to the company's open source thought-leader, Dave McAllister). The company also has new open source destination.