Checking fan speeds and temps isnt a feature that needs to be hacked.
They provide live data to the motherboard though their 4 pin cables. Its not some calculation, its a live measurement of RPMs
As for the mouse, unless there is a switch or software from the company, you are SOL. My razer abyssus pulses from off to green, I would prefer it to be on all the time, but you know. It also stays on when the computer is off.