T-Mobile USA, the struggling No. 4 cellphone company, is ditching plans centered on familiar two-year contracts in favor of selling phones on installment plans.

The company changed its website over the weekend to sell the new plans. It was set to lay out the rationale for the change on Tuesday at an event in New York.

Yahoo! announced plans Monday to buy mobile news reader app Summly from the London teenager who invented it, likely transforming him into one of the world's youngest self-made multimillionaires.

The company did not disclose the terms of the deal it struck with 17-year-old Nick D'Aloisio, but the London Evening Standard said Yahoo! would pay between £20 million and £40 million ($30 to $60 million).

Apple has bought WiFiSLAM, a startup that has been developing a way to use WiFi hotspots to help smartphones navigate large indoor spaces, like stores, airports and conference centers.

The purchase is part of Apple's efforts to bolster its own mapping and location capabilities, after breaking up with Google Inc. last year.

Internet messenger applications such as Skype, Viber and WhatsApp face being banned in Saudi Arabia if operators fail to allow authorities in the kingdom to censor them, industry sources said on Monday.

Local telecommunication providers have been told to ask the operators of the services to furnish means of control, an official at the kingdom's Communications and Information Technology Commission said, requesting anonymity.

Investigators have yet to pinpoint the culprit behind a synchronized cyberattack in South Korea last week. But in Seoul, the focus is fixed on North Korea, which South Korean security experts say has been training a team of computer-savvy "cyber warriors" as cyberspace becomes a fertile battleground in the nations' rivalry.

Malware shut down 32,000 computers and servers at three major South Korean TV networks and three banks last Wednesday, disrupting communications and banking businesses. The investigation into who planted the malware could take weeks or even months.

Ka-ching! The cash register may be on its final sale.

Stores across the U.S. are ditching the old-fashioned, clunky machines and having salespeople — and even shoppers themselves — ring up sales on smartphones and tablet computers.

Technology giants including Apple and Microsoft on Friday defended their pricing policy in Australia at an official inquiry launched over concerns that they were overcharging customers.

Australians, on average, are forking out 34 percent more for software, 52 percent more for iTunes music, 88 percent more for Wii games and 41 percent more for hardware than U.S. consumers, according to consumer lobby group Choice.

Apple's iPhone is outdated, according to the chief executive of BlackBerry-maker Research In Motion Ltd.

Thorsten Heins made the comment Thursday on the eve of the much-delayed launch of the new touchscreen BlackBerry in the United States. AT&T begins selling the Z10 touchscreen BlackBerry on Friday, more than six weeks after RIM launched the devices elsewhere.

Microsoft said Thursday it received 75,378 law enforcement requests for data in 2012 in the tech giant's first report on the sensitive subject.

The requests, which included those for the Skype messaging and voice service, potentially impacted 137,424 accounts, Microsoft said on its corporate citizenship Web page.

A U.S. federal judge has ruled that the online news "clipping" service Meltwater violates copyright law by using excerpts from Associated Press articles, the parties said Thursday.

The U.S. news organization sued Meltwater, claiming the service infringed on AP's copyright by delivering its articles to clients without paying a subscription fee.