In its analysis of more than 60,000 mobile phone bills in the U.S., Nielsen details the most talkative (and most “textative”) Americans by gender, age, region and ethnicity.

In many developing markets, inexpensive and available mobile phones serve as a substitute pathway to the Internet. Rapid mobile phone adoption presents “reverse innovation” opportunities for clever marketers who leverage the trend.

Smartphones now account for 25% of the U.S. mobile market, up from 23% in the last quarter according to recent data from The Nielsen Company.

Whether it‘s checking email on the go, connecting with friends through social networks or using turn-by-turn navigation, the capabilities of smartphones are convincing more and more consumers to make the leap from a simple mobile phone to a more sophisticated device.

Smartphone adoption and use of mobile applications is rapidly increasing… what are the most popular apps and who is driving the growth?

We are at the beginning of a new wireless era where smartphones will become the standard device consumers will use to connect to friends, the internet and the world at large.

In a demographic view of social networking activity on mobile devices, women were found do use their phones to “tweet” and “friend” 10% more than men.

For consumers in India, the quality of a mobile phone provider’s network is the most important factor when choosing a carrier, according to the latest edition of the Nielsen Consumer Experience Mobile Test Program.

The launch of the Droid by Motorola–which runs Google’s Android 2.0 operating system–is the latest smartphone to be tagged “a game changer,” and “the iPhone killer.”

In Latin America, sales of mobile phones have had a noteworthy increase in the last years.