Analytics firm Distino also released a report this past weekend, about App Store offerings rather than developers, and it found that about 80% of iPad apps on the App Store were paid, with only slightly fewer for the iPhone. Google's Android market, however, has 57% of its apps listed as free, the highest percentage by far of all the mobile marketplaces tracked. That may give some indication as to why developers currently prefer the App Store -- they can make more money there, with a larger audience more ready to open the wallet. But don't count Android out -- the service is still growing (only developers from nine different countries can distribute paid apps), and as the platform becomes more viable, it seems developers will be ready to move in the future. As Appcelerator concludes, Apple's store is the current winner of developers' attention, but as soon as developers see a flexible platform with a solid userbase elsewhere, they'll happily go there. too.