Thanks for that clocklaw. The pic is of one mounted on the latest super tenere which gives an idea of what it would look like. I googed to find one on a TDM and see that Amazon currently has them from a seller named "Bob's Bike Stuff" for the same in stock and shipped. I haven't looked in a while for one. I guess there was enough demand out there already for a seller to make a go of it.
FS: WRR/X Parts Garmin mount
"If you do not change direction, you may end up where you are heading." Lao Tzu