Also, I seriously doubt anything apple is going to release will come close to the GSIII. After getting this phone I can say that I may becoming a huge android fan (reluctant to say fanboy) the only I would take over from the iPhone is the build quality, always love that about apple. It has been frustrating though with having a macbook pro and the GSIII, the two of them haven't gone alone so well.
Don't worry too much, there really isn't much of a difference between ICS and JB aside from swiping up for google now or whatever. It is a nice little upgrade, though. Seems to be a bit slower on my GNex than ICS, though.
I have a Samsung Galaxy II and today it just stopped working. When I put the battery back in, it starts up for a few seconds and then the screen cuts off. And then it sits there, a tiny vibration every two seconds with the screen off.