Hi,
I'm working on a project called myBoard, it's basically a port of the MacOS X dashboard on Windows XP/Vista. The only difference is that gadgets/widgets are called magnets in myBoard.
Basically myBoard is a semi-transparent layer that is invisible to the user unless activated by moving the mouse toward one of the user screen's corner or pressing a hotkey, which can be set to the user's preference.
When myBoard is activated, the user's desktop is dimmed and magnets appear in the foreground. Like application windows, they can be moved around, rearranged, deleted, and recreated (so that more than one of the same magnet is open at the same time, possibly with different settings). New magnets can be opened, via an icon bar on the bottom of the layer, by dragging a widget icon out into the layer. After loading, the widget is ready for use.
The nice thing about myBoard is that unlike Vista dashboard magnets don't eat space on your desktop, they just appear when you saumon them, and leave when you don't need them anymore.
See myBoard in motion here.
Official myBoard website.
Let me know what you think