this different from iOS? First, I'm not the most tech-savvy person, but I'm very interested in all things tech. I'm currently researching Android smartphones and am baffled by articles suggesting the next ones will come with the next version of Android (possibly called Key Lime Pie). Why is this such a big deal? Couldn't current Android phones be upgraded when that OS comes out? The same goes when shopping for Android phones. Some that I like come with the 4.1 version of the OS. Couldn't they be upgraded to the latest (4.2.2)? If not, is it because of hardware issues? Because as for as I understand, most new iOS releases are still supported by older iPhones (except the 3rd gen one). Thanks for any clarification of this issue.