It appears that "Windows 7 Aero snap" does not work on "non-aero" MM4 skins (those that are fully skinned with custom window border/title bar).
With "Aero Snap" I mean how you can usually drag a window to the left/right sides of the screen to make it "snap to half-screen", or dragging the window to the top to make it "maximize window". As I have seen other fully skinned applications do this, I guess either this is a bug or just a feature that has been omitted.

