I seriously don't see the problem with PSP. It got ton of great games, like:
Lumines
Loco Roco
Tekken 5:DR
Tales of Eternia
Guilty Gear XX#R
Daxter
Wipeout Pure
Ghost & Goblins
GTA
Syphon Filter
As for future releases, you got:
Metal Gear Solid Portable Ops
Lumines II
Silent Hill: Origins
NFS...