I thought up of what the next full size iPod wheel and buttons could be like. Same layout as the current 3G, but instead of the touch sensitive buttons, they could be like the ones on the miniPod. Also, to save some battery, I think they should allow a shut off of the screen after a minute or two. I mean, who stares at their iPod when they walk down the street. Although, I don't know how much the screen actually uses up, so it may not even be worth it.