The social network will now accept payments from users through carrier services in the U.S., U.K., and Germany.
Bango has developed a new product called the Bango Button that should make it easier for people to find and download Web content onto mobile handsets.
The company and its underwriters have reportedly been hit with about 50 lawsuits related to its botched IPO.
The software giant hosts the four-day Build conference in Redmond, starting today, hoping to lure developers to create programs to sell in its app marketplace.
Mobile users want full Web access on their smartphones, driving growth in the mobile browser market.