I have a gmail account and therefore I have seen it - but nah, I don't use it. Things like this can be as technologically brilliant as they like, but ultimately that doesn't matter. It's the people on it that make it work. Just look at Twitter - all the hype came around that when people found they could check what they're favourite celebrities were up to, Myspace was the worst coded site on the planet yet people still used it because all their friends were on it - and facebook took of pretty slowly as people moved across from the insecure, messy, horrible and just generally awful myspace. Their abuse of standards, appearance and coding style did kill it off from the no. 1 social networking site in the end, but it took a heck of a long time to do it!