I've signed up for the 4 day Charity Treks ride from Charlottesville, VA to DC.
I was realy interested in this from the bike-touring perspective, but it sounds like most people have aged out of camping to staying in cabins. I'll leave that as an option, but I'm going to stick with the camping. After the centuries in August and September, the individual legs might be a relief. However, this will be the most days in a row spent biking significant distances.
Registration is still open if anyone's interested.