Why does sony need to be involved it would be regular websites just like this one only if you load this website in the ps3 browser it wont display right and you will constantly scroll back and forth. Sony would maybe offer to sell me a developer kit once they have more in stock for the low low price of $20k+

if the flash media player is compatible with the ps3 simple flash games could be coded using the mouse as a center point of lets say a car for a racing game and when you move the mouse using the joystick L3 the car would move from left to right. I don't know if you could set the game to pickup the directional pad as awsd keyboard keys in which case most flash games would be compatible and would simple have to be checked for compatibility and added to the games list

I don't think it supports java applets yet so games such as runescape would probably not run on it.

edit: Fishy (flash game) works on the playstation although there is a lot of run this plugin prompts to get there is there a way of turning them of?