Fantastic analysis of the possibilities for the Chrome operating system from a user's perspective.
I think it's possible that we'll see an ARM-based Chrome OS portable for $200 sometime next year.
What I still haven't seen however is the discussion of what this OS means "for always on the net" appliances. Appliances that serve a purpose for a user or company or anyone just passing by rather than a lite secondary netbook that someone adds to the inventory of computers they already have. The dedicated appliance for digital signage suffers from all of the ailments of what is described in this article - synching, bloated operating systems, security issues, cost barriers, etc. etc. Chrome OS could address all of these for the dedicated appliance market.