A few new stats that Nielsen published. Seem like e-retailers jumping soon on the bandwaggon as well.

“40 million U.S. mobile phone users, 15.6% of more than 256 million, actively use the mobile web, making the U.S. a leader in mobile web adoption, the report finds. In 16 countries tracked, the U.S. leads in penetration, followed by the U.K. at 12.9% and Italy at 11.9%. Nielsen Mobile has yet to factor in some Asian countries, which have much higher mobile web penetration rates.”