I agree. I don't even have an iphone, i just picked up an iPod touch (although it makes me want an iphone even more). Before that I would swipe my roommates iP

I agree. I don't even have an iphone, i just picked up an iPod touch (although it makes me want an iphone even more). Before that I would swipe my roommates iPhone to test things out but that got old fast :) If you want to develop an idea around the GPS or the camera, you might need an actual iPhone. Mac mini's are great, or pick up an old model macbook. I would also highly recommend the book "Cocoa Programming for Mac OS X".