Good example? It is an interesting concept but while it resembles the physical object it does not fit in with the normal way of filling out a form on a webpage. And has anyone used this in production? I really like to see some stats on how this performs.
This requires me to use mouse to navigate between fields. I really prefer to not get my hands off the keyboard when I start typing something. Tab key is there for a reason.
And I can't review in a single glance whenever I typed everything right.