you know ..the web and that..isnt it?

go here via link/pic (only through your iphone safari) to make a fake apn mobileconfig(or a custom one) which you can install right now,which should stop those nasty $/£ surprise when returning from holiday only to find out your iphone has secretly been on EDGE getting you your latest weather reports whilst not on wifi connections !dang! (ps tethering still looks blocked by apple on os 3.1.2 so this still needs a  jailbreakin to fix ..)