The third alpha release of Ubuntu 10.10 Maverick Meerkat was just released, so I figured I'd give it a shot in the ol' VirtualBox VM.The Pros: Mouse pointer integration is built-in, so you don't have to deal with reinstalling Guest Additions every time you do a kernel update.The Cons: Since Maverick started using a new X-Server (1.9), Guest Additions no longer do their acceleration and resolution magic. This includes manually adding resolutions to the xorg.conf, so until something changes, it's 800x600 all the way...UPDATE (9/30/2010): Looks like the open source edition of VirtualBox has us covered...