I am eagerly awaiting this critical piece of software. Yes, you can use the web version, but it is clunky and not that efficient.
This will really help me better manage my files that I want to share between devices - photos and music are at the top of the list. But it will also complete my desire to move paperless. let me explain:
I have recently signed up for Earth Class Mail which receives my U.S. Postal Mail and at my direction either scans it, shreds it, recycles it, or can forward it to me. For the important stuff, I have them scan it, which I then download, and store in my "mesh". By using my PocketPC with Live Mesh, I'll be able to see my mail from any location I can get an EVDO signal at.
So - I hope we get this important addition to PocketPC software soon.