Easy. One of the arguments to the create_email call would be a phone number or IM or existing email. The captcha would be mms'ed/im'ed/emailed (along with an ex

Easy. One of the arguments to the create_email call would be a phone number or IM or existing email. The captcha would be mms'ed/im'ed/emailed (along with an explanation of what it's for), and the account would be created when the person replied with the correct response.