Just tried it out -- exactly what I was looking for. In less than a minute I was practicing Spanish with a nice fellow from Mexico. Superb idea.
Just for reference, biggest countries right now are USA, Spain, Mexico, Colombia, Argentina, and U.K.
Just log on during the next session, which is at 9 PM in Spain. Just to make sure, would you mind shooting me an email at jake@verbling.com from the email account you signed up with? That way, I can take a look to make sure everything's the way it should be.
And thanks for the kind words!