...and later still! lol
More of Dan's photos: http://www.flickr.com/photos/dclarson/sets/72157624825829641/
Techmount GPS mount for Garmin Zumo 550 on a 2010 Ducati Multistrada. This method will provide more stability when mounting to the windscreen bracket.
Materials: Black Delrin plastic ~ 1/4-20 x 1-1/4" flat head bolt ~ 1/4-20 nut
Cut the Delrin (I used a hacksaw) to fit the space under the windscreen bracket. Use a belt sander to shape the curve. Slightly flatter is better so when you tighten the bolt, the stress gets spread across the whole curve.