Installs on my devices went fine, did iPad 2 AT&T, iPad 3 AT&T, iPhones 4, 4s iPad 3 AT&T now has mobile hotspot and a clock app Some bugs I wanted to see if others were seeing on 4s AT&T : AppStore is buggy in spots, in 'featured', in the sliding row beginning with 'AppStore essentials', it doesn't fully slide to all the selections on the right. Going in to purchases crashed most times for me, when I do get in it'll actually show iPad only apps which of course don't install. In general AppStore experience has a buggy feel with even a occasional blank app icon. I absolutely hate how contacts groups works now, so backwards. Before you could go back and forth between groups easily. Now you must , hit group button, select a group then hit done to go in. To change, you hit groups, unselect the group you selected before, hit the the group you want and then hit done. Hope that made sense, it's a very bad change. Sometimes hitting Siri doesn't get to the 'asking what you want' part, hitting the Siri circle doesn't activate it. Posting to fb from notification center won't show in the fb app on your newsfeed as if you had posted in app instead. It will show on your timeline. I'm just picking on negatives I've seen so far, there are improvements as well. Just feels buggy in parts.