In iphoneatlas, the following appeared:
The iPhone development community has done it again. Software/firmware revision 1.1.3 has been jailbroken (full read/write access to the filesystem), meaning that unofficial third-party applications can be installed under this release. Unfortunately, the current method is so complex that its developers have decided to hold off a public release [Update: We’ve also learned that the jailbreak method requires hardware modification].

Is that true? You need to modify hardware even for jailbreaking? That would explain the weird "we are not releasing it until the February SDK" attitude.

i think they mixed up jailbreak and unlock