PD7 and Mountain Lion Just received response from PD tech support that PD7: "Hello xxxx, Your issue is handled by second line Technical Support. Parallels has always been committed to supporting new Apple operating systems when they are released. Our engineers are hard at work with this developer preview. When Mountain Lion is released to the public we will post and share details about its compatibility with Parallels Desktop for Mac products" I think this means we're SOL.
I don't know how any of you missed this long thread: http://forum.parallels.com/showthread.php?t=257398