Seems like Burley now has a Piccolo replacement called the Kazoo. Was going to spend my REI dividends on a new wheelset, but may have to reconsider.
Also for all those trailer hitch problems, Burley now has their own version similar to Wike's.
They're back with a vengeance.
Edit: One egregious caveat: Burley states you can't pull a trailer with the Kazoo as the hitch/Moose Rack is only rated for 85lbs. That's an oversight and design flaw, imo.