Shortly after the Palm Pre became available on Saturday, gadget enthusiasts began hacking at it. It began when a special developer tool which contained most of the source code for the Pre's software was leaked. Apparently people have been pouring over the code, seeing how to hack it. They've created the obligatory "Hello World" app and more impressively (but just as obligatorily) have begun porting the classic "Doom" computer game to the Pre.
A similar thing occured when the original iPhone was release and hackers worked to "Jailbreak" it as a time when Apple was severely restricting the applications that users could install. It's an exciting time for Palm's new phone.