The Windows Mobile 6.x client for Live Mesh followed right in the footsteps of the Mac client although it’s not out for general consumption just yet. Only residents of the U.S. or U.K. can download it for their handheld at the moment. You’ll want to catch the signup and download details here on the Live Mesh blog. There were some issues with the initial download release, but appear to be resolved at this point. I know that some commenter here have been getting errors on their Mesh for Mac client, but I haven’t seen that behavior for some reason. Like any other technical preview (read: beta), there’s bound to be excusable hiccups.
Feeling less then adventurous and want to see what all the Mesh fuss is about? Check out video demos that offer a nice overview… but you’ll need Silverlight installed to view ’em.