I've got my Droid 2 (CDMA) under-clocked. My Droid 1 worked ok overclocked to 800 Mhz and did what I needed ok with good battery life and good performance for what I use my phone for. (Streaming music)
I wanted longer battery life and didn't feel the need for 1.0 Ghz when 800 Mhz or less was ok.
I wondered if any other members here also under clocked their Droid 2's CPU also? If so what were your results?