Hey, Dropbox (and similar services): good optional feature to bundle in. Rationale: I, and a few million others, may be too ignorant or lazy to separately inst

Hey, Dropbox (and similar services): good optional feature to bundle in. Rationale: I, and a few million others, may be too ignorant or lazy to separately install this 'just-in-case' application. But since I'm putting Dropbox on a few machines, I might as well enable this feature on the ones liable to grow legs and walk away. Plus, besides making Dropbox/etc. more attractive, this might tie-in nicely for security - I think that, if my laptop were stolen, the thief would have my cookies, i.e automatic web access. It would be acceptable to have Dropbox demand new logins for new access IPs. Or even 'go dark' (have to be manually launched).