It's real. Sorry about the website, folks. Fixed. (Ryan was creating a new website because he didn't like the design of the old one and for some reason thought "hpvf.org" would be easier to type than "friendsofthenashuariverrailtrail.com/humanpoweredvehiclefestival/". But he got sidetracked partway through, and both of us lost track.)
As to the shift (back) to Saturday, we held it on Saturday the first two years, then tried Sunday in response to requests from a few bike shops whose staff couldn't attend on Saturdays because they're too busy. But we got no more attendance from them than we had on Saturday, and we lost a bunch of people who can't do Sundays. So it's back to Saturdays for the foreseeable future.
Tim