I'm signed up for the Point Reyes brevet with the San Francisco Randonneurs next weekend. This was, for a while, a cause of a certain amount of bellyaching...
Garmin has been fat and lazy, being the only real provider of GPS units for the bike, so it's good that Pioneer is also in the marketplace... albeit, a soon-to-be-smaller marketplace given that most riders are going to be happy enough with an iPhone in a handlebar mount.