Much has emerged in the last 3 years on the mobile area and along with mobiles their resources for development. But given all these options, in which should one invest one’s time in learning? Besides the fact that no one wants to invest some effort in a non-promising technology, it is interesting to invest in one that offers good support for the development of applications, otherwise people will not accede to such technology. Like me, many people have doubts upon which platform to develop for. Enjoying the boom of the Android and iPhone, here’s an interesting article (not so new)written by Ed Burnette, author of the book http://www.pragprog.com/titles/eband/hello-android, on a course of development for Iphone where he does various comparisons between the SDK from Apple and Google.