Since Apple opened its goldmine IPhone App Store, all eyes have been on the upstart mobile provider and its business model. Now that their success is beyond argument, every other major provider has either launched a similar application marketplace or announced plans to do so. Let's take a look at the status of the various mobile application stores:

Apple. - The IPhone App Store is the original mobile phone application center, and it's the mean dog on the block. With more applications on the IPhone App Store than anywhere else, Apple's application center is the one to...