M:Metrics recently made public some data from January 2008 in terms of mobile data usage (table below).

It offers two interesting takeaways:
- The most successful applications are still related to communications, i.e. multimedia messaging and emailing, followed by internet browsing, music and gaming
- The US are now a mature mobile market, and Europeans can't assume anymore they are at the leading edge when considering mobile content and applications. Sure there are still some discrepancies (still trying to understand why music is not big other there) but usage data are fairly aligned. Worth noting is that the US have a lead over Europe when considering the most advanced applications such as internet browsing, emailing or social networking. Seems the American mobile users went straight from the old clunky basic cellphones to the advanced smartphones such as the iPhone or the Blackberry Pearl/Curve, while other here in Europe, users still tend to value fashion - less advanced - phones that can only offer a limited internet user experience