I'm using the iphone 4. I chose it over an android hand set because: 1) Nice solid feel to it compared other mobiles. 2) Well engineered package. Battery life for instance compared to hot android phone at the time the Evo. 3) I got the impression that the interface was superior 4) Long term updates and no having to wait for my phone maker to put their own skin on. I'm sure I'll swap to android in a few years time, but at the moment their is no real competition in my mind.