While all that sync’ing works quite well, I still have different desktops on my MacBooks.
Here is a solution that is based on some undocumented feature of the iCloud that I have found at macstories.net. It basically needs to activate the iCloud settings also for files which will give you in Lion access to a magic 5 GB ~/Library/Mobile Document folder very much alike to Dropbox.
I am rsyncing here now my Desktop folder by an automator action as described at banana.com. Can be done in less than 5 minutes…