Google & Yahoo Tops for Mobile Search, Says Nielsen

According to Nielsen Mobile, Google leads in mobile Internet search provider share
followed by Yahoo!, together accounting for 79% of the mobile Internet
search market.

Top 3 Mobile Internet Search Providers for Q1 2008 by Provider Share

1.  Google  (61%)

2.  Yahoo!  (18%)
3.  MSN  (5%)

Demographics and Usage Google and Yahoo! Mobile Searchers

• Google and Yahoo! mobile search skew male; 65% of Google search users and 63% of Yahoo! searchers are male.
• At 9.0 searches per month, Google users search more frequently than
  users of any other mobile Internet search provider.  Yahoo! is the
  third most frequently-used provider, with Yahoo! users searching 6.7
  times per month.
  

Google and Yahoo! mobile searchers seek out the same objectives in nearly equal proportions.

44% of Google users rate their satisfaction with mobile Internet search
between 8 to 10 on a 10-point scale, compared to 40% of Yahoo!
searchers.