From technewsworld The world of open source mobile platforms is starting to get a little crowded. Over the past couple of days, rumors began flying that Dell (Nasdaq: DELL) Latest News about Dell is getting into the game with a phone based on Google's (Nasdaq: GOOG) Latest News about Google Android platform. Dell denies it, but the amount of attention that is being paid to this segment of the market is notable. Also recently, Nokia (NYSE: NOK) Latest News about Nokia purchased Trolltech, which develops open source user interfaces, and Azingo has launched its own platform that's a direct competitor to Android. Some hardware makers -- Philips (NYSE: PHG) Latest News about Philips spinoff NXP Semiconductors and Purple Labs -- have announced a low-cost Linux-based phone. I see a lot of predictions that say Linux is going to be one of the top three operating systems for mobile devices in coming years -- and a lot that say that mobile devices are going to make up an ever-larger portion of our information technology usage in the near future. The Players Microsoft (Nasdaq: MSFT) Webroot AntiSpyware 30-Day Free Trial. Latest News about Microsoft has its Windows Mobile, a start-to-finish platform that's already on the market. However, it's a Microsoft product. And in order to develop third-party apps for Microsoft products, you've got to do things Microsoft's way. Symbian Latest News about Symbian is the current dominant mobile OS, and it's owned by Nokia. Nokia, you recall, bought Trolltech, which created Qt, a major element in the KDE Latest News about KDE open source user interface. A version of this, Qtopia, runs mobile phones including the Greenphone, one of the first Linux-based phones to hit the market.