Think it is a about time they did this. There are some major risks with one factor as more and more services use Google as a single signon mechanism. I go into

Think it is a about time they did this. There are some major risks with one factor as more and more services use Google as a single signon mechanism. I go into the details here: http://rakkhi.blogspot.com/2010/08/why-dont-facebook-twitter-and-google.html http://rakkhi.blogspot.com/2010/08/why-dont-facebook-twitter...