If that’s Cambridge, MA, I’m in Boston until Thursday the 8th.
http://unicyclist.com/forums/showthread.php?t=55898
I can’t do trials, but it’d be cool to ride around w/ some other riders.
I can do mild to moderately technical Muni. It’s not supposed to rain/snow for the rest of my stay, so maybe the trails will be clear enough for me to ride on Tuesday or Wednesday (I can’t ride in snow consistently yet), if you want to do that.