I have: 2005.12.12 - GP2XV127 - 00001409
At some point, I want to trade mine in to get a newer version, but I dunno how I'll go about doing that.
On the sticker, it says "Model No: GP2X-F100"
THAT might be the firmware.
Also, I notice the flickering on the black-screen-of-death, but not...