mobile phone + password = 2 factor auth?

[Jon Stanley]

On Tue, May 26, 2009 at 9:50 AM, Seth Vidal <skvidal at fedoraproject.org> wrote:

> Now, my question is - what is dangerous/silly about this?

Interestingly, for something I'm working on at $DAYJOB we're proposing
pretty much exactly this for a customer.  However, instead of a text
message, the authentication mechanism is a phone call, thus minimizing
the effect of luddites like Bryan :).

http://www.phonefactor.com/