Advertisers and those aiming to reach smartphone and tablet users on their devices should look no further than free apps. According to Nielsen’s Consumer Usage Report, 51 percent of consumers say that they are okay with advertising on their devices if it means they can access content for free.

Almost one in three U.S. TV households – 35.9 million – owns four or more televisions, according to Nielsen.

A new report provides a snapshot of the current mobile media landscape and audiences in the U.S., and highlights the potential power of mobile commerce in the near future.

Teens have officially joined the data tsunami, more than tripling their mobile data consumption in the past year while maintaining their stronghold as leading message senders.

NM Incite found that the iPhone has been the most frequently mentioned smartphone OS in terms of online buzz on blogs, message boards/groups, Twitter and Facebook, and online news posts, capturing 40 percent of online buzz about smartphones from July through December 2011.

In the U.S., 71% of those with smartphones own either an Android device or an iPhone. But when it comes to smartphone apps, iPhones and Android smartphones are even more dominant: 83 percent of app downloaders, that is, those who downloaded an app in the past 30 days, use iPhone or Android smartphones.

These days, Social/Local/Mobile seems to be driving much of the conversation about online opportunities. Nielsen and NM Incite, drawing upon their vast information on consumer intent and behavior, illustrate the most valuable digital consumers.

American consumers are increasingly connected, and our recent survey shows they are increasingly multimedia multitasking.

According to the first mobile media rankings based on audience measurement data from metered smartphone usage, aside from the Android Market app itself, Facebook, Google Maps and Gmail were the most used among U.S. Android users 18 years and older.

With more than one mobile phone per person in Germany, it is a strong mobile market, but the potential for growth exists. German mobile consumers are connected and getting smarter. Nearly two out of every three (63%) mobile purchases in Germany are smartphones.