Microsoft Live Mesh
Ok. I just read about this on some blog. Microsoft's "Live Mesh is an ambitious initiative — a combination of a platform and a service" or "a Software + Services platform for synchronization and collaboration" or simply "I think it’s being able to interact with your data anywhere you go across a number of devices"
'Nuff said. Click on the links to find more!
Unfortunately, there's a waiting list to try it out. I'll try and see if I can pull some MVP muscle to get it.