Apotheker resigns as SAP's chief executive

Olympics notebook: Interview with a Games junkie
Norman Tu is a self-described Olympics addict, attending at his seventh games. But, he says, that's the perk of owning his own company.

How will Xbox Live work on Windows Phone 7?
Don't let the simple interface fool you. Xbox Live on a phone is more than having your avatar on one more screen.

Verizon CTO says 4G service is on track
Verizon Communications' CTO Dick Lunch said the company is nearly finished testing its 4G LTE network. And it will offer commercial service later this year, as expected.

U.S. cyclist accused of hacking
A French judge issues an international arrest warrant for Floyd Landis on charges of hacking into a laboratory computer system.

What we still don't know about new Windows phones
Although Microsoft's new operating system is intriguing, there are still a lot of unanswered questions. CNET's Ina Fried explores some of these.