If you haven't tried out live mesh yet I really encourage you to try.  It's an amazing well designed product and incredibly useful. 

It's still classified as a tech preview but now they are taking on additional users (doubling the current user base in size). 

http://blogs.msdn.com/livemesh/archive/2008/07/16/live-mesh-still-in-tech-preview-but-ready-for-more-users.aspx