I was lucky enough to go to Interbike in late September which was held at the Mandalay Bay convention center in Las Vegas. Got to catch up a little with the US Brompton reps, and also met some other characters from Brompton HQ (including Will Butler-Adams).
A couple of cool things that Brompton came out with were different colored saddles and grips, as well as a London Map flap for the S-Bag.
Here is a video (not mine) of the Brompton booth: