Dieter from WM Experts shares info about methods to fully unlock your AT&T Tilt or HTC Kaiser. I am quite happy with AT&T, so I will pass, but I am sure some of you want to use T-Mobile in the US.
Big ups to jockyw2001 over at XDA-Developers, who has furthered the cause of unlocking your Tilt (HTC Kaiser for you international folks). He's put up two sets of instructions. The first is a Kaiser Sim Unlocker, if you need to use your device on a different network. The second is a SuperCID and Security Unlocker, which is something you'll probably be able to ignore.
Head over to WMExperts for more info. Also make sure to check out Tiltsite.com's new layout!