It looks interesting, although the backpack looks really awkward.

I'm surprised they didn't use their traditional folding seatpost. I really can't tell what would make that much more compact than any other Bike Friday, or folding bike for that matter.

fixed or 1 to 3 speeds maybe a different category of bikes than they've done in the past. I'd expect to also see the Alfine 8 & 11, although not necessarily the lightest.