A start-up in San Francisco’s financial district looks to add touch-screen technology to a host of everyday products, including home phones.

The 64-gigabyte card employs the new SDXC (XC for extended capacity) memory standard.

Alex Rigopulos, a founder and the C.E.O. of Harmonix Music Systems. Big eyes (reflected from a photo in his Boston office) were watching.A Beatles video game arrives at a time when participation and simulation are changing the way we listen to music.

While hackers have begun some prominent attacks, the structure of the industry — and some dumb luck — keeps most phones safe.

A mother finds out that online you can confront life as a cheater, without real harm and consequences. (And you win more.)

To counter Amazon.com, Sony and other device makers as well as several publishers will use the same technology, called ePub, for digital book sales.

New routers can transmit data faster and allow a dozen devices to be connected simultaneously.

Gap is reintroducing its core product, denim jeans, with an elaborate campaign notable for its many nontraditional elements.

The Microsoft-Nokia partnership is aimed at mounting a stronger competitive challenge to the BlackBerry in the business market.

Boxee, a controversial start-up that is trying to bring free Internet video to televisions, has raised $6 million in additional venture funding. Its goal is to get its software onto more living-room devices.