Brian Gorbett has posted a nice screencast demonstrating how to build a Silverlight video player that installs as a Live Mesh application. I think this application model is going to be increasingly popular as we see more increases in the number of machines that folks use, from their home PC to their work PC, to their laptop on the go, etc.
Having applications in Live Mesh means that your favorite apps are just a login away…no need to reinstall on your new laptop, etc.
I do think Brian needs to get his keyboard fixed, though. Looks like somebody stole his shift key (sorry, Brian, Tim made me do it).