I'm downloading it right now. Thank you Revenent for te invitation.
This is so real, this is what I got:
We'd like you to be among the first to try the beta version of Windows LiveTM Messenger.
If you use MSN® Messenger now, we think you're really going to enjoy Windows Live Messenger. It's as fun and reliable as the Messenger you already know, and you won't lose your contact list or any other personal information when you try this new version. Check it out to experience new ways to connect to your friends via text, voice, video, and more.
And in case you were wondering about the name change, Windows Live Messenger is part of a new family of services from Microsoft® that includes Windows Live Mail (now a simpler, safer, faster mail), and Live.com (a new personalized homepage experience), to name just a few.
The Windows Live Messenger team