Yahoo and Siemends have entered a VoIP partnership. Microsoft is readying the Vista marketing blitz. Yet another Mac OS X hack challenge has been launched.

"The original challenge allowed any users to have local accounts to access the machine via SSH," Schroeder said in an interview via e-mail. "This is an important distinction, because if you have local--or physical--access to a computer, you have a very distinct leg-up in terms of the ability to escalate your privileges."