Cool, but one quibble: You need to make it obvious right up front that cookies must be enabled on your domain for this to work (not sure why this is needed, but

Cool, but one quibble: You need to make it obvious right up front that cookies must be enabled on your domain for this to work (not sure why this is needed, but...). I block all cookies by default and got all the way to the end of the process only to discover nothing. Nothing! (Kudos for handling failure gracefully, at least the app didn't blow up, everything looked fine - but anti-kudos for not detecting that the process wasn't working.) When I enabled cookies on fruji, ta-da, it worked fine. Turns out I'm not very important, sigh. :->