I have an unlimited plan with AT&T as well, apparently if I am ok with giving up my number too I can sell it on ebay for like $400+ but my wife was like NO I CAN'T MEMORIZE 9 NEW DIGITS so whatever, wasn't worth the argument and trouble to go through an account transfer.

They stopped throttling at 5GB a while back, the current limit is 22GB and then you are throttled.

My phone comes tomorrow which would have been great because tomorrow is also the last day of my billing cycle, but my wife didn't get a shipping notice yet so it will probably be like 25 days before we switch over because AT&T does not prorate the month for a termination, even though they prorate your first month when you sign up. I'm not going to miss them.