I recently ordered a gba and now I'm discovering the available games with virtualboy while waiting it to arrive. I'm sad to see that bitmap brothers and sensible software games didn't make it!
2d alone isn't enough to make a good game. I don't like most of the new japanese games on gba. Most are gay, not serious enough to be entertaining. You know what I mean from this thread, typical nintendo. I would wish there be serious european game developers for gba now, like the way amiga did, or better japanese game design teams that sega had in 90s.
But in worst case, I'll still be using it it as a game gear emulator. Too bad it can'^t emulate mega drive. Maybe I should invest on a gp32 next.