Nice review...I put up one somewhere...err...somewhere I forget the location of! D'goh!
I was waiting for you to put that in your blog, to be honest!
IMO, GP32 sort of takes over where the NGPC left off. And fills in a few spaces. Well, a lot of them. But I often describe it to people as a cross between a GBA and a NGPC (mainly cos' NGPC's had joystick thingies too)...