[Keymaker]

You install the nightly builds on top of the last build? Or do you completely uninstall the last build and install the nightly build? Because for me that would suck for my customizations and what have you. Although, my tweaks and addons could negate the type of build too in terms of speed and performance I guess. Maybe I should use it in VMware.

Songbird is something else I have been looking into.