Psx4all is a game emulator of Playstation for iPhone, iPod Touch and Ipad from ZodTTD. Psx4all is the continuation of psx4iphone. It now supports all devices, including the iPad. Note that it isn’t iPad native resolution yet, but playing in portrait mode with 2x seems to work very well at the moment.
It now supports the WiiMote, WiiMote Classic Controller extension, and has built-in download support. This emulator has come a long way, and on 3rd gen and 4th gen hardware it runs many games amazingly well.
There’s still some compatibility tweaks to be made but overall you should be able to find a compatible game and have it perform well on a 3gs or iPad, for instance, with ease. On 2nd gen hardware the number of well performing games decreases, of course. An update is coming shortly to improve compatibility and fix slowdown issues reported when the device is offline.
Watch Psx4all gameplay video below: