Actually I would have change to Android OS but the issue I have is the Market even though they have Better things and it more of an Open Source... but I have just have some bought apps and passed apps from friends and stuff so yeah I wan't to buy an iPhone 4 16GB but I there is no Unlock still or else I have to use my Grandma's sim card.
both are good, but i have a HTC and mine laggs so bad, like i'll flip the phone around to turn the screen around, and 3 seconds later it turns, horrible