After upgrading to 1.1rc the unity mode doesnt work proprerly on a dual display system.
If you try to move a "pc" window between the screens you only get "half way". The content of the window doesnt render properly on the other screen.
Running 10.4.10 on a MacBookPro 15" with a Apple 20" monitor, VMware Fusion 1.1rc1, WinXP SP2.
Also have a feeling that the performance was better in beta 1.1...
/ Daniel