I have some world clock gadgets in my Windows 7 sidebar that are quite useful for me to be able to glance over and look at on my second monitor. In Vista you could make the whole sidebar 'always on top' and other windows on the screen wouldn't maximize over the top of it, or under it. In Windows 7 gadgets are now free floating. You can make each gadget 'always on top' but this just means they render over the top of any maximized window on the screen.
Does anyone know of a way to make the Windows 7 sidebar function like the Vista one? I tried changing the compatibility of sidebar.exe to Vista, but it seems security permissions/properties for things under 'Program Files' are very difficult to change.