I got the att version on tuesday. I've had the tmo version since january. I have tried every kernel, and ton of roms, and there is no possible way to get the att phone to maintain a wifi connection. This phone turns non pingable the instant the screen goes off. I've tried different routers also. Different security etc, apps, wifi fixers, widgets, everything. I really can't figure it out. I went back with both phones to frf50 and stock kernel. The tmo phone is good, but the att phone drops wifi instantly. There's something in the att phone that disables the wifi conection that's no in the tmo version. Funny thing is the wifi icon remains on the notification bar but it's not connected to it. I'm giving up on it. I've spent two whole days on them and I just can't do anymore. I'm keeping them though, still love the phone. I just hope someone gets a fix for this issue. I gotta say that Geo's ROM and InsectRaven's kernel are great. After going back to stock 2.1 it really makes you appreciate the work that these people do. The improvement is dramatic. sorry bout the rant.