The way some of you are defending the GP2X makes it sounds like the source of unlimited energy, and therefore solve all problems on Earth at once.
The stick isn't THAT good, its ultimately digital which means a basic D-PAD would have worked better. The screen isn't 100% perfect (check the firmware thread). The batteries that come with it only last 45 minutes, and there is no mains adapter. At the very least a mains adapter should come with it imo. The USB doesn't work on most people's computers either.
As it stands (and thats how you would have to review it), its got many flaws and RIGHT NOW, not too many redeeming qualities. The movie playing, emulators and music playing are all good (but as Edge said, don't meet all the features marketted).
The GP2X is a great device, and will definitely sell well within it's intended market. However, EDGE is targetted at joe gamer. To joe gamer who will want to download a few games and play them - the Edge review is pretty spot on. Maybe commenting on the fact you can use rechargable batteries (£15-£25), buy an additional mains adapter (£10) and an SD Card (£20-£50) it pretty much matches the Sony PSP for features out of the box (altho... at this point it now matches the price too). It doesn't have a large number of commercial quality games (emulators with ROMS excepted), which means to joe game it isn't better than the PSP, or the cheaper DS.
Of course to the niche the GP2X is marketted, its almost perfect. And for this niche, surely a review in a magazine is irrelevant?