The OS is the Browser
From the looks of it ChromeOS is really just Chrome plus the most minimal OS accouterments: logins, wifi setup, power controls, basic document handling [passes them to Google Docs (gview_request_interceptor.cc)]. A slick idea. Probably going to use the built in ftp support (with a brushed up CSS theme) to do the file browsing, besides your content will be indexed and searchable, this is Google.