Launch of Windows Live Messenger Marks Significant Progress for Microsoft's Windows Live Era:
Definitely not a minor upgrade... The new feature I'm likely to care most about, near-term:
"Sharing Folders. Now sharing is as easy as dragging and dropping a file. With a new, intuitive user interface, customers can more easily share their files and personal photos with family, friends and colleagues on their Windows Live Messenger Contact List."
I'm hopeful this can be used for sync'ing stuff across my PCs as well as with others.