I think ultrasn0w 1.2 broke internet tethering on my 3GS iOS 4.0 That is the only thing that changed is I upgraded ultrasn0w to 1.2 from 1.1-1 Every thing was working fine with tethering and all, before the update. Now the tethering is gone unless I use SBSettings to toggle it on but when I try to connect it goes away. I tried to restore from a backup but it doesn't back up any of the hacks. Now with it restored I redid everything with it updated and it is now checking with AT&T for tethering. I need help not a moral discussion on tethering! so if you don't think it's right for me to use the unlimited data I pay for then go read another post.