Other than it looking a little more fancy, I don't see any difference. Certainly not in batter life. Mine is still terrible and drains at least 40%-50% overnight, when the phone is idle. The website Android - Introducing Ice Cream Sandwich
claims the one thing I was most excited about, resizable widgets. Maybe I'm missing something but I can't even "edit" HTC widgets. I had been excited for weeks now, what a letdown. Oh well, back to Go Launcher.