well, that day has come. today, a user by the name of Hasuky from elotrolado forums was able to sucessfully hack his ps3 using a Dualshock3 controller. Here is his post (spanish). He was able to Port PSGroove onto his contoller, and was able to keep the controller working well for gameplay.

Unfortunately, a tutorial hasent been released YET. Hasuky is planning on releasing a tutorial tomorrow, once the tutorial is released, i will post it here. However, he has told us that some soldering will be required in order for PSGroove to be flashed onto the controller. Here is an englsh translation of his post on the forums. And below, you will see a proof of concept. i must say, i am really exited 

EDIT: Confirmed! Use this link for a tutorial!