I had the same issues last night on my 4S GSM with iOS6b3, but I also had the problems on my iPad 3 still running 5.1.1 or whatever the latest there is. So I don't' think this is a beta issue.
I had the same issues last night on my 4S GSM with iOS6b3, but I also had the problems on my iPad 3 still running 5.1.1 or whatever the latest there is. So I don't' think this is a beta issue.