Just the normal "kinks" in JB. The dev added the apps that he could, as far as work arounds go. Like,FxCamera and GoSMS Pro for those issues. This is daily drivable for sure.
The last time someone had me use fxcamera to get flash working, it would only light up to focus, then not flash when it took the pic. Was it a problem with the settings maybe? And MMS is an issue, to where you have to download a different messaging program? I'm about to install now, I have just herd different things from different people. I want to know as much as I can so I can get it set up quickly.