I have been using this build for a few hours now and I must say, it runs so much better than 2.3. SO much smoother and less clunky than before. For the first time I think Android is finally as polished as iOS, or darn close to it.
I am having problems with facebook app now, any fix for this?
Face unlock isn't secure either. It is really just a fun little novelty. Google has already stated it wasn't secure. Galaxy nexus owners have used pictures of themselves and successfully unlocked their phones.