GP64 - don't really care.
between GBA (commercial) and GP32 (homebrew + emu) I have more games than I'll ever be able to play.
I am sure at some point I'll update (if it becomes necessary) to a device that is affordable, and can play all the stuff that we hope the GP32 can potentially play. (and by "play" I mean the same quality as on my PC). In the meantime I am content to sit and watch where GP32 goes...
ps. it's a damn shame there's no commercial support for GP32 (well, that the majority of us can appreciate) Such wasted potential, this thing could trounce GBA!! Maybe I'll be proven wrong, someday.