I picked one up at launch. Not worth it unless you just want to add to your collection. It's not impossible to get other games on it, but it's not really worth it at the moment either. As of now, it involves hacking up a miniSD card reader and loading roms with the bios infused in the zips and loading them that way.
There are issues with the stick, the video output, sound, and screen.
I would recommend getting a
GCWZ instead, when they come out.