Apart from the credit card designs, which are nifty, I suspect that many of these would actually have quite a low conversion rate. They’re violating some basic principles of form design: in many of the examples, the labels don’t remain visible when you start typing (so users forget what they’re filling in), and it’s not clear to the user how many fields they’re going to have to complete before they start. Also, patterns exist for a reason, and throwing up something that’s too unusual can just confuse most users. I’d love to see some of these form ideas split tested against more traditional form designs.
That said, there are some really clever interaction thoughts in these examples, which could definitely be lovely subtle tweaks on existing forms.
Just a reminder that usability > awesome lookingness.
Thanks for collecting these examples, Saijo!