Now that I've reviewed all those kickstarter projects... here's my list of what is most interesting.

1. Hummingbird. Cool looking bike, but not the smallest fold. Lightweight at 6.9kg
2. Dahon, Tern, and Bike Friday all had Kickstarter campaigns in the list. The Dahon Curl is the only one that is not really available to buy.
3. SU18 has a very neat fold. Unfortunately impacted by the war in Ukraine, but they are still communicating with backers so that's positive.
4. VELLO successfully delivered their first kickstarter campaign with $30K. And were rewarded with over $500K in the second campaign.
5. FLIT-16 is a nice looking bike. Like the Hummingbird, it's not a small fold, but looks like a quality build.
6. Pop-Cycle claims to be the first with this design concept of a sliding mechanism. They're not.