What prevents some phones from being able to do it, and others not? Aswell, are their any roms that allow more than 3 screens for the droid?Most people can overclock to 1.2. Very few (I think I've seen only one person with this problem) are unable to overclock to 1.0. I haven't seen anyone that hasn't been able to overclock to 800. So you are safe to think that you will have a Droid running at 1.0 ghz.