It's been a big week for Microsoft with respect to the mobile market. On Monday, the company released its Windows Phone 7 to U.S. markets, and the company announced today that the Bing for Mobile Android App is available on all major U.S. mobile operators.

It’s been a big week for Microsoft with respect to the mobile market. On Monday, the company released its Windows Phone 7 to U.S. markets, and the company announced today that the Bing for Mobile Android App is now available on all major U.S. mobile operators.

The Bing for Mobile App was previously available for only select devices in the Verizon Wireless Android market. Now, the company says it is available (preinstalled) to all Android users. This gives the company a leg-up in reaching consumers who use Google’s platform, which currently accounts for 21.4 percent of the smartphone market by comScore‘s measure.

The accessibility of the Bing for Mobile App may help Microsoft gain mobile search market share at a time when on-the-go web browsing is on the rise. Brafton has reported that searching the internet is now the second-leading mobile activity among consumers. Plus, the wide release of the app comes close to the launch of Windows Phone 7, which offers Bing as the default browser.

Nonetheless, marketers looking to plan mobile search campaigns may want to focus on Google to reach Americans on-the-go. StatCounter data shows that Google accounts for more than 98 percent of mobile searches conducted by the 234 million U.S. mobile users.

Katherine Griwert is Brafton's Marketing Director. She's practiced content marketing, SEO and social marketing for over five years, and her enthusiasm for new media has even deeper roots. Katherine holds a degree in American Studies from Boston College, and her writing is featured in a number of web publications.