Just wondering if anyone is running a Rev B and using something like VirtualBox. Im looking at getting a new laptop and want to get the Air but am concerned that 2GB may not be enough for playing round with virtualization and that I may be better off with the MacBook. I like the MacBook but still find myself preferring the Air. If anyone is using this setup I would like to know how they find it, ie could it do with more memory/better processor? Also tempted by the Rev A Air but put off by the core shutdown threads!