Media Week (UK) recently put that question to a panel of four industry experts, including Kent Ferguson of Nielsen Mobile.
Ferguson argued that four essential components needed to take mobile advertising mainstream — advanced consumer devices, high-speed networks, reasonable data packages, and compelling content — are now in place, paving the way for growth. 
“In the UK, about 10 million people have recalled seeing a mobile ad; in the US, that number is almost 60 million,” Ferguson told Media Week.  “As more countries lay down the groundwork for an effective mobile advertising …

Nearly 45% of U.S. and 31% of UK mobile video users will join the mobile audience for the 2008 Olympic Games, Nielsen Mobile reported Thursday. 
Nielsen’s data shows that U.S. and UK consumers are especially likely to view high-profile, short events, such as Track and Field and Gymnastics, on their mobile phones.  
The mobile Internet will also play a critical role in mobile Olympics viewing, with 23% of U.S. and 17% of UK mobile Internet users planning to track the Games through their phone browsers, according to Nielsen.
“Mobile media will change the …

With Apple’s new iPhone 3G scheduled to go on sale worldwide this Friday, Nielsen Mobile released penetration, demographics, and usage data for the current iPhone:
How many iPhones are already out there?
-Nielsen Mobile estimates that there are 2.3 million U.S. mobile subscribers using an iPhone
-The iPhone accounts for 1% of all embedded mobile phone users in the U.S.

Who is using the iPhone already?

-Two-thirds (67%) of U.S. iPhone users are male (compared to 48% of all mobile subscribers)
-55% of iPhone owners are under the age of 35 (compared to 34% of all …