I used to use that on X360, then I got the Hori EX2 Turbo (which IMO is a superior replacement for the stock XBOX controller, and something you can use in between recharges/battery replacement).

Though, while "wireless" on the PS3 is cool I'd rather it be more like the Dual Shock 3s are re: batteries

there is another 6 button controller that Hori makes for the PS3 but they effed up the shoulder buttons