Using build 5582, and for the most part love it. However, every so often the Space automatically switches to Parallels. I'm running Parallels in Coherence Mode, set in Space 3. Sometimes there is a popup on that screen, sometimes not. Most often, I can't figure out why it switched. It would be nice if Parallels would bounce the icon in the Dock when there is an "event" in the VM instead of forcing a Space switch. Maybe this could be a configurable option? I'm also looking forward to the day when we can spread VM apps across Spaces. That'll be sweet.