A concern that's been on the tip of the Android community's tongue lately is hardware acceleration. It's something we've been waiting for for a while now, and it looks like Ice Cream Sandwich will finally deliver.
Hardware acceleration allows for a buttery smooth user experience, better graphic performance, and better responsiveness within apps. The sheer volume of improvements coming in Ice Cream Sandwich is astonishing, and I have a feeling we haven't heard about all that ICS has to offer yet. For more info, check out Google's Android Developer page for Ice Cream Sandwich.