The CC Pro is awesome in terms of grip, which for me is the most important factor on a controller. It has better grip than any of the other controllers out there, with exception for Virtual Boy's controller which seems to have very similar grips. The grips have to be long enough, and have just enough thickness to be almost perfectly ergonomic, the Xbox 360, the PlayStation, the GameCube, and even the Wii remote fails in that regard. The CC Pro even has a plus, it doesn't have those irritating L3/R3 pushdown buttons.
To be on topic, doesn't the Linux OS boot up separately from the PS3 OS?