An odd-but-stable-looking contraption doing a Trail-gator job of towing a laden child's bike, but looking like it was made out of a couple of half-BOB-Yaks - turning out of Chambers St onto South Bridge, northbound just after 5pm today ...
That sounds like a Follow-Me "tandem". I asked velorution to supply me one, but after 3 phonecalls, I gave up and bought a trail-gator instead.
They are meant to be very good, but a couple of mates have "got by" with trail-gators, and they are less than 1/4 of the price.
FollowMeI've ridden the Kangaroo bike. It was the first of many family thingies that we tried before ending up with what we have. The cabin is lovely for the kids, but it's the tippiest of all the trikes I've tried (Christiania / Zigo / Taga / Bakfiets.nl Cargotrike), and has a bit of mind of it's own on cambered roads. When I say a bit, I mean I had to come to a complete stop because I thought I'd end up in the river. I do see one or two being used in anger, but mostly I see them pootling around the centre of Cambridge. They are the second most popular weird kiddy carrying bike here. You are pretty much guaranteed to see a couple in the town centre on any Saturday.