GP32 had some commercial software, GP2X had some too.
http://www.clickgame.../gp2x-store.htm
And W&W, Payback, Vektar, Retrovirus RTS, maybe more. I don't see why Pandora wouldn't, it's even easier to dev for than the GP2X. The lack of OpenGL on the GP2X made it more of a niche device I think...