I test rode a Pugsley today.

[driver]

Very nice ride with fat tires. I rode over rocks that normal mountain bikes would never be able to handle. These are getting popular here along the shores of Lake Michigan for beach riding. I may have to dust off the wallet for this one

http://surlybikes.com/bikes/pugsley/

[hamradio]

I see quite a few around mpls/st. paul, in winter.

Apparently they are stupid amounts of fun to bomb around on.

[driver]

The test ride was an eye opener - these bikes feel planted. I may have to sell some camera gear for this one.

[Frontman]

I saw one of these the other day on Yasukni road in Tokyo. Only in Tokyo (where there isn't enough dirt to get the bottoms of your shoes dusty) would someone think that this bike would be "ichiban" for commuting on smoothly paved sidewalks.