The development team explains how this could prevent your device from being opened (hacked) permanently.
FORUM REGARDING HACKING THE IPHONE 3GS HERE. (Do *not* eMail the developers.)
F.A.Q. REGARDING 3GS JAILBREAKING (HACKING) OPTIONS HERE.
3GS issue: explanation from BigBoss (and Saurik) here.
Geek Tech article here. (-MacWorld reprint here.)
The Unofficial Apple Weblog's take here.
