Viacom CEO Phillipe Dauman said his company is serious about wireless during his keynote address today at CTIA Wireless. Dauman opened his address with an amusing video intro by Jon Stewart and a camera trick designed to make the audience see how small Dauman would appear on a mobile phone screen.Dauman said Viacom properties MTV Networks, BET Networks, and Paramount Pictures signed new sponsorship agreements for its mobile media portfolio.

Here is a look at the announcements:

-- Advertising deals with Pepsi and Intel for the new mobile sites and mobile TV channels-the first time MTVN is selling advertising across its mobile portfolio. -- A new content partnership between Sprint and MTVN-making Sprint the largest carrier of MTVN content. VOD from 10 channels plus streams of content from Nick, Comedy Central and MTV and will highlight on the deck new sites from VH1, MTV and Comedy Central. -- BET is launching the 106 & Park Mobile Fan Club today: free ringtones, a subscription to a mobile magazine and access to exclusive content. -- The first-ever SpongeBob SquarePants channel, launching exclusively on Amp'd June 1, part of a new content distribution deal with the Kids & Family group. -- Also on Amp'd, GameTrailers is launching a new mobile video channel and a new series covering mobile games.

In addition MTV plans to launch new mobile sites for Nickelodeon, Spike TV, and TV Land in the second quarter.