We now have CM7 and official recovery. Get the recovery from Rom Manager, we are finally supported! and here is the thread from XDA about CM7!
[ROM]MyTouch4G Slide CM7 SelfKang Alphafied Number 1 (11/1) - 2.3.7 - xda-developers
[ROM]MyTouch4G Slide CM7 SelfKang Alphafied Number 1 (11/1) - 2.3.7 - xda-developers