You missed off power supply from your list. (Headphones arn't exciting because you can't get electric shocks from them) :P
The built in USB port is not a host port, meaning that it must be used to connect to a real host such as a PC. The GP2X will then appear on your PC as an external...
I know it says it works under X but it shouldn't be too hard to hack? or is it?
EDIT : Oops i meant to put this in GP2X, but i guesss it may still be relevant, can somebody move this for me please?
I would never buy anything expenive from a foreign country, you're lucky they even agreed to take it back.
I'm so tempted by a DS lite, but until a UK supplier has got a good stock at a good price, i'm not risking it.
Have you tried theoddbots gamma correction tool that fixes the gamma on the chip to make everything look nice again?
But I know what you mean, it would be cool to have a dial to adjust the actual brightness, like with the afterburner on the GBA