www.helix.ca, but the public pages show only a pre-production version of the bike from a few months back and some of the details (geometry) are a little out of date.

The Kickstarter page has a video of a much older iteration which is not as pretty or sophisticated, particularly wrt the rear triangle, but gives the general gist on fold etc.

The more recent goodies are only available on the backer pages which require a log in.