All,
I'm an avid ultra-marathon runner / mountain unicyclist (I hope to combine the two disciplines in the future). Anyhow a pair of unicyclists I'm familiar with are attempting to ride the GDR on 36" unicycles:
http://divideby1.blogspot.com/Check them out, follow their progress and show your support!
One of these days soon I hope to embark on my own UNIpacking epic.
Cheers