ALSO NOTED: VZ Navigator 4.0; A Zune content filter? and much more...

> Report: Mobile social networking tops 4 million users in the U.S.

> Microsoft denies plans for Zune content filter.

> Verizon Wireless announces updates for VZ Navigator.

> NBC launches multi-platform Women at NBCU effort.

And Finally... Lebanese civil war fueled by cell phones. Article