Sorry its very minimal - I wanted a proof of concept before I
started adding more features.
I suspect that 99% of you will think its idiotic, but that leaves 1%,
and its got viral built in, so it might develop a happy user base.
There are two ways a new user will approach this app. They could hit
the front page, where they are asked to create a new accout, that's http://w3frm.com
Or more likely they could have been invited by somebody else with
an invitation URL, inviting them to a specific "group". I've
created a group called "First impressions". The invite URL is here
http://w3frm.com/invitation/bcc74050-fa63-490a-a8c9-8ce735cb9b81
You don't have to enter your real email address if you don't want, that
would only be required for forgotten passwords and notifications.
Don't overlook the bookmarklet, I think its critical to the user experience.
There's a very minimal api for browser plugins if anybody is interested.