The typical U.S. mobile subscriber sends and receives more SMS text messages than telephone calls, according to research released Monday by Nielsen Mobile. 
During the second quarter of 2008, a typical U.S. mobile subscriber placed or received 204 phone calls each month.  In comparison, the average mobile customer sent or received 357 text messages per month — a 450% increase over the number of text messages circulated monthly during the same period in 2006.

The Washington Post reported Tuesday that mobile Web surfing is a big hit with U.S. wireless subscribers, according to a new report by Nielsen Mobile.
The report found that mobile Internet penetration is highest in the U.S., where 15.6% of wireless subscribers use the Internet on their mobile devices. The U.K. followed, with a 12.9% mobile Internet penetration rate, while Italy took the third spot with an 11.9% penetration rate.
Those rates indicate that the mobile Internet market is mature enough to attract advertising, but it may take time for advertisers to migrate …