Clearwire

A high-ranking executive of chipmaker Advanced Micro Devices privately shared a lot of potentially market-moving information at crucial moments in the company's recent history, according to court documents.

The executive is former AMD CEO Hector Ruiz, according to a person familiar with the matter. As detailed in filings, Ruiz's disclosures offer an up-close glimpse of the information-sharing at the heart of a scandal that has rocked Galleon Management, a hedge fund controlled by billionaire trader Raj Rajaratnam.

T-Mobile plans to merge with Sprint Nextel to take on AT&T and Verizon Wireless in the U.S., according to Monday's The Daily Telegraph. The rumors come on the heels of a T-Mobile-Orange merger in the United Kingdom.

The Telegraph is reporting that T-Mobile's parent, Deutsche Telekom AG, could submit a bid for Sprint within the next few weeks. Sprint's current market value is $10.8 billion with debt of $21 billion. Sprint shares climbed 10 percent Monday in the wake of the reports.

Clearwire says it remains on track to launch its Clear-branded WiMAX 4G service in Atlanta next month, with Las Vegas slated for a late summer launch and Chicago, Philadelphia and Dallas/Fort Worth scheduled for rollouts later in the year.

Clearwire has tapped Cisco Systems to provide the wireless infrastructure for its new 4G network. Cisco, based in San Jose, Calif., has been tasked with building new mobile WiMAX devices for Clearwire's network for small and midsize business markets, Clearwire announced Wednesday.

Clearwire currently provides mobile WiMAX services in Baltimore, Md., and Portland, Ore., and plans to bring its 4G service to more than 80 markets in the U.S. by the end of next year, according to the company.

Despite having watched its profit virtually vanish in the fourth quarter, Intel, the world's largest chip maker, remains committed to spending billions of dollars on new manufacturing sites and attacking rivals in new markets.

Last May some of the biggest names in the technology and media business, including Intel Google, Sprint, and Comcast, teamed up to invest $3.2 billion in the startup Clearwire. The Kirkland [Wash.] company founded by entrepreneur Craig McCaw had high hopes of shaking up the wireless industry. The idea was that Clearwire would offer an alternative to the two big incumbent U.S. operators, AT&T and Verizon Wireless, by rolling out a technology called WiMAX that could provide superfast Internet service for cell phones, laptops, and other devices.