I'm sure many more qualified than I will be posting reviews here and elsewhere but I will of course be posting my impressions.

There has been some interest on the backer forum in a London Helix owner's get togther. As my bike was fairly early in the order, i was thinking of bringing it to a centrally located, and well lubricated London venue one evening after it has arrived so that fellow backers with a longer wait may get their fix a little earlier. No reason that couldn't extend to other interested Londoners on this thread, if there are any.