I tried to set up an account using the email option and it never sent the email. Heh, pretty tough to verify. Then it wouldn't let me try again because the email address had already been used.
That's a different matter though. Mobile works, but a lot of folks in the world might not have it. And some who do might not have sms. IOW, isn't this a requirement to have a mobile phone?
I think genetic sampling should be implemented. It's even better than fingerprints. ;)
I'm glad they're working on this. It's tough to figure out the best way to implement it. And then there are the company or project names we want to use that we don't want to overlap with our personal accounts. How's that going to work?