This is an old revision of the document!
The Current Version of the firmware is V1.04
If you want to upgrade your firmware, see the BootLoader section of the wiki.
There are a set of modifications made to the firmware by the x0xb0x community, check em out at FirmWarePatches. There is also a wantlist/wishlist at FirmWareRequests.
See FirmWareHacking for a guide on programming and modifying the firmware.