In addition, Yahoo announced it has partnered with MobiTV, a mobile and broadband TV and music company, for mobile advertising. Yahoo will be the ad network partner for MobiTV's mobile video advertising sales and delivery. Yahoo said the announcement builds on the launch of Mobile Publisher Services.
Separately, Microsoft on Tuesday announced that its IP Ventures will launch ZenZui, an independent company that it says aims to change the way people use mobile devices to access content.
ZenZui worked with IP Ventures to acquire the technology and assistance in securing venture capital funding to help launch the company, according to Microsoft.
Avenue A|Razorfish, Kayak.com, OTOlabs and Traffic.com are all participating in a trial of the technology.