What ever happened to the userProfile object? Even sites that are unrepentantly MS-centric have not used this to obviate the need for lengthy forms collecting vital stats. The XForms working group has not specifically suggested a similar wallet-type input. Even the WHAT-WG has not proposed a vCard input in its splinter-proposal for Web Forms 2.0.
Instead of terribly kludgy workarounds like RFC 3106, why has there been no method to simply pick an address card to fill in name, email, addresses, phone, etc.?