Samsung Tab Reviews, Twitter + Ping, Webb Telescope Problems

Close of Business is a new video series that we're trying out. The idea is simple: at 5 p.m. (or thereabouts), we post a quick video summarizing the top three news stories of the day. Some of them we'll have written about; others will just be what people were talking about on the Internet.

Links to stories mentioned in this video:

Samsung Tab reviews: Gizmodo ["a pocketable train wreck"]; Walt Mossberg ["iPad's first real rival"]; David Pogue ["beautiful and expensive"]

Twitter Plus iTunes Ping is a Non-Starter [ReadWriteWeb]

Hubble's Replacement is in Trouble. What Happened? [The Atlantic]

See more video from The Atlantic Technology Channel.