Yeah. I'm having the same problems as you guys. I restored my iPhone from backup so I guess that's why I can't connect to YouTube. Also for the record, Ambiance is crashing immediately upon start up. Safari browsing seems MUCH faster for me, SMS can get choppy and unresponsive if you have a lot of texts. And for some of the apps especially Messages, when you press it normally it should fade for a sec and then open up, but now it seems like your not opening the app at all. But overall good build, there are some bugs. I actually do prefer 2.2.1 over this. But I know I can't downgrade🙂. Also, I have AT&T and MMS does not work at all. I guess that's ATT's fault. 🙂