You know what sony failed most, imo, with the psp?
The thing is already 5 years in the market and they don't have a Pokemon, a Nintendogs, a Brain Age, a Professor Layton, etc, etc... an portable exclusive IP!
All the heavy hitters (that are not THAT heavy) are third party games - like monster hunter or GTA. Games like MGS or Final Fantasy Agito are good, but they look like gimped versions of home consoles. There's no IP you can say: now that's a PSP IP!















