I can't wait for it. I've been talking to some Vista developers and they virtually promised they would deal with stupid, ugly and out of place GDI drawn menu drop shadows and have DWM handle them but obviously that worked out as said... I hope a greater level of control would be added to WindowFX such as a tool for adding custom window classes - which by default do not get shadowed by WindowFX - to a user defined list (for example Firefox menus do not get shadows from WinFX) or excluding windows by class (maybe even some regular expression filtering for added flexibility).