I spent a couple-few hours tooling around town yesterday on the Pugsley. The slurpy has froze solid. This has created much more favorable conditions for the ultra fat rubber on the Pugs. Although the Pugsley is not a huge fan of sheer ice (and this is not a shortcoming of the Pugs, though can you imagine studded 4" tires at 10 psi?), it does great powering over clumps of frozen slushy slop.
I'm getting a feel for the front end. The hard part about frozen slurpyville is negotiating tire ruts. You can ride in them if you're zen and look down the road. Or you can ride across them. On a normal bike, riding across them would be challenging. On a Pugs, it's can be challenging, but your odds are way better. So -- front end wise, I'm finding that unweighting/slightly popping the front wheel on transitions over the ruts helps a lot.
Generally, I'm not finding the Pugsley to be as "slow" as I expected it to be. And I expected it to be a major slug turd. It's clearly not fit for the early morning race up Hatch, but given how huge it looks, I was surprised at how relatively not-hard it is to get it up to a nice cruising speed and keep it there. David has got this bike dialed in, so that helps.
I'm still interested in taking it bike camping some day. Imagine the Badger Lake run on this bike -- pure cush.