Well, you people obviously don’t like Pownce - which is somewhat understandable. Hopefully a couple GrandCentral invites will do the trick. You know the drill: register for Agroots.
I have Pownce invites 
What is it you might ask? I’m glad you asked, so I could fill this post a little more with a quote from their website:
Pownce is a way to send messages, files, links, and events to your friends. You’ll create a network of the people you know and then you can share stuff with all of them, just a few of them, or even just one other person really fast.
In short, it’s nothing too exciting, but it’s a side project created by the founder of Digg.com (Kevin Rose) so it’s bound to be popular without having to prove itself. Let me know if you found a use for it, as me and my friends that are using it have yet to.
I’ll give them away the same way I did for Joost invites: If you want one, create an account at www.agroots.com and come back here and leave a comment to let me know you did it.