Okay, I for one will attest to fixed being "fun" it is, it is a blast, and it has put a kick into my riding. It is that simple, but there is no way it is more fun to go down hill on a fixie. I've done it two different ways, taking feet off pedals compleately, which gives one a really strange riding position, or try and control descent by standing on the brake and the pedals. It's work!

I have heard of BMX pegs beign attatched to the trak hub instead of nuts, so going down hill you have a place to put your feet and let the pedals fly. I don't think that works on road/track though.

I enjoy my fixie. I have commuted 20 miles a day on my fixie for the past two weeks. It is a blast.