I think the keyboard issue is because this was ported over from another phone, so Jackpot did a workaround to keep the keyboard from popping up fully. I think he tried to keep it from popping up at all, but it caused the keyboard to force close. It should be popping up fully in landscape, though. If it's not, it's something that was broken with the new build. It works fine in landscape on my Pro, and I haven't updated to the new build yet (probably will today). Hopefully we can solve the keyboard problems for good at some point.
As for the camera key, that's also related to the keyboard. Right now, the only way to have that assigned to anything is to use the stock software, because it's only compatible with the Blur system. We can't port over the Blur keyboard to CM7 because it's incompatible. Maybe someone will figure out how to access the mapping for that key, but for now, it does nothing unless you're on the stock software. Even on the stock software, you couldn't make it the shutter button for the camera.