ALSO NOTED: Measuring mobile marketing; Virgin inks a deal with Limbo; and much more...

> Forecast: Full-track mobile revenues to hit $4.2 billion by 2012. Article

> How should we measure mobile marketing? Article

> Virgin Mobile USA inks a deal with Limbo for SMS blasts about interactive programming. Article

> Garmin adds mobile TV service to its GPS device. Article

And Finally... Shortly after formally launching its N-Gage platform, Nokia launched a worldwide Mobile Games Innovations Challenge. Article