The RCA 8-inch Mobile TV Tablet has a battery life up to four hours in mobile TV mode, or up to 10 hours when web browsing.

ENGADGET: RCA Mobile TV Tablet combines DTV with Dyle, arrives this spring for $299

Though still in limited-access test mode, Joost boasts near-DVD picture quality, rare in Web video, and posts as little as a minute of advertising per hour of programming.

FORBES: Magazine Article

For offline mode to work, people have to install the Gmail Offline app in the Chrome web store.

FORBES: Google Takes Gmail, Calendar, Docs Offline: A Big Plus For Chromebook