psp

Sega Game Gear!

PSV

Neo Geo X, Game Gear, or Nomad. It is a disgrace that you even have the N Gage in the op.

IPhone ??? What decent game they have????? I mean if you consider angry bird and all the word, drawing, games like killer apps ok.... but seriously they just ported the 15 year old games you could find at any touch game box in any pubs of the planet.... if we lower our standard to that then mine sweeper and solitaire are the most played game ever and PCs pre Pentium III the most used gaming rigs..... are we gonna go there or you will finally acknowledge that cell phones are miles away behind dedicated handheld and you are just being entertained by very basic games and that will fade or be replaced by more serious gaming in years to come.... but now... come on it's like considering the Toyota corolla S like a sports car.......

Gotta be PSP. It had a nice, diverse library: shooters, RPGs, platformers, etc.

The Vita library is just too small at the moment.

Game Gear could have been great, by it just got too many ports of Genesis games. There are a few stand-outs, but not enough to come close to PSP.

I think you cannot count mobile phones as they represent another targeting group! You cannot buy great games for 1-2 € on the 3DS and the Vita! But the Vita and the PSP are the best non Nintendo Handhelds! As the Game Boy Advance was a Flopp for Nintendo the PSP will be successfull for Sony as it represents the best selling non Nintendo Handheld! For a Nintendo Handheld selling under 100 Million is nearly a flopp!

WonderSwan Color

How can you forget to list a swedish masterpiece???

Gizmondo :P.