A Dutch architect has designed a house "with no beginning or end" to be built using the world's largest 3D printer, harnessing technology that may one day be used to print houses on the moon.

Janjaap Ruijssenaars, 39, of Universe Architecture in Amsterdam, wants to print a Mobius strip-shaped building with around 1,100 square meters (12,000 square feet) of floor space using the massive D-Shape printer.

The Mozilla Foundation on Tuesday unveiled two preview smartphones as it invited developers to try its new open-source mobile operating system challenging Apple's iOS and Google's Android.

The announcement marked a major step forward for the new Firefox OS mobile operating system which is being built using open Web standards, like its Firefox Web browser.

The Library of Congress, repository of the world's largest collection of books, has set for itself the enormous task of archiving something less weighty and far more ephemeral -- Americans' billions of tweets.

The venerable U.S. institution is assembling all of the 400 million tweets sent by Americans each day, in the belief that each of the mini-messages reflect a small but important part of the national narrative.

Video game maker Atari's U.S. operations have filed for bankruptcy protection in an effort to separate from their French parent company, which is filing a similar motion separately in France.

In a statement, Atari says the move is necessary to secure investments it needs to grow in mobile and downloadable video games.

Swedish telecommunications equipment maker Ericsson said Monday it would buy the telecom and media unit of French technology consultant Devoteam.

Around 400 France-based IT services professionals will join the company under a deal the company said would strengthen its consulting capabilities.

Chinese tech giant Huawei on Monday criticized U.S. claims the company might be a security risk as trade protectionism that harms consumers.

The comments came as Huawei Technologies Ltd., a maker of network switching gear and smartphones, disclosed details of its 2012 performance in an effort to show transparency and allay security concerns.

North Korea is loosening some restrictions on foreign cellphones by allowing visitors to bring their own phones into the country. However, security regulations still prohibit mobile phone calls between foreigners and locals.

For years, North Korea required visitors to relinquish foreign cellphones at the border until their departure, leaving many tourists without an easy way to communicate with the outside world.

Apple chief Tim Cook and Google chairman Eric Schmidt are expected to face questioning in a lawsuit accusing Silicon Valley giants of secretly agreeing not to "poach" one another's workers, according to officials and court documents.

Plaintiffs' attorneys said US District Court Judge Lucy Koh endorsed questioning Cook, Schmidt, as well as Intel head Paul Otellini, after reasoning that high-level executives would know about restrictions on hiring talent.

The group behind Wikipedia on Thursday won a $600,000 Knight Foundation grant to improve access to the communally compiled online encyclopedia from mobile phones.

Wikimedia Foundation was among eight News Challenge winners awarded a total of $2.4 million for projects ranging from turning basic mobile phones into radio stations to helping newsrooms manage content sent by people on the move.

Google has removed a "Make Me Asian" app -- that let players change their appearance -- following an uproar by Asian American activists who said the game promoted derogatory stereotypes.

As of Thursday, "Make Me Asian" and similar apps such as "Make Me Fat" and "Make Me (American) Indian" were no longer available on the search engine giant's online store Google Play.