Very well could be the same guy.

i went back to the website for the fair to find out his name since I could not remember it.

His name is "HILBY" here is a link:

http://www.hilby.net/

He WAS at the KEY WEST KRITTER PARADE. (according to his list of performances)

After seeing the pics on his site, I sadly admit that can't be the guy I saw.
For a minute there I thought I actually saw "THE" Hilby....shucks.
Net, The unicycle is a very "zen" thing. certainly underappreciated. My only gripe is that I happen to know guys that can do it so much better than I do.
I imagine these kids today with all their freestyle BMX tricks can probly step up on one
and do things I never even thought of.
Still, as unlikely as it may seem, they truly are babe magnets.
Another really fun thing with it was whenever someone ever stepped out of their shop
and said "hey, that's pretty cool" I could always tell 'em to give me a free t-shirt and I'll wear it around while on the uni. I had a LOT of free t-shirts.
Oh, and power kiting on a uni is scary.