I've spent a fair amount of time on Android devices, and the one thing that I continually miss are home screen widgets. The notification center is nice and all, but I really wish iOS implemented a more immediate way of getting information at a glance. The icon grid is certainly simple and streamlined as is, and who knows how continually-updating widgets would effect battery life, but I would like to have the option, at least. Besides, this would open up a whole new content avenue for developers, especially if they've already put in the legwork for the Android versions of their apps.