I worked on Plaxo (or as the kids call it today... 'some electronic rolodex company' :-) )

This idea sounds exactly like Plaxo.

That being said, I'll sign up and see what they are up to. I believe there is a lot of innovation that can still happen here. Just recently, a few companies trying to attack this space again.

Also, what I would really like to know is if they have something here or if this is just another YC email signup test.

We shall see.