Isn't the ideal kinda both/neither? Get a "dumb" laptop with plenty of horsepower/space, sign in to something and sync everything over (chef/puppet/btsync/drop

Isn't the ideal kinda both/neither? Get a "dumb" laptop with plenty of horsepower/space, sign in to something and sync everything over (chef/puppet/btsync/dropbox), do a bunch of work locally, then wipe the laptop. I'd love to have my whole laptop identity work that way. It's sort of possible now but it takes forever to convert all your data and apps over to that approach.