for me the 2.2 update has me wondering. basically i went from stock 2.1 to rooted and OC'd 2.2, and i can really tell a difference in speed especially on the web. however i absolutely HATE the redraw lag i get whenever i go to my home screen. i am sure a ROM will come out sooner or later that will get rid of this and made 2.2 a 100% win for me...right now it is about 65% win, 35% loose. thankfully i have a dock charger at work and home so the battery issue is not an issue for me.