Are you still doing iPhone app development? Help me out here:<p>1. Do you use an iPhone or Android phone as your primary phone? One problem I have over developing for multiple platforms is I can only have 1 primary platform (1 desktop/laptop + 1 mobile device). It's the only way I know to ensure the product is good. How do you do it?<p>2. It's early, but how's sales like compared to iPhones?<p>3. How's UI like? I had a G1 dev phone and haven't been much up to date with the developments of Android since. In particular, (a) the UI library - do you still pretty much have to cook up your own style because the native ones are terrible, and (b) how do you deal with compatibility over different handsets?