March looks busy for mobile security people ;-)
Android Malware becomes serious: The Mother Of All Android Malware Has Arrived: Stolen Apps Released To The Market That Root Your Phone, Steal Your Data, And Open Backdoor. This malware contains a root exploit. Yea, after you install the APK it roots your device.
Interesting papers (from ACM Hotmobile 2011)
MockDroid: trading privacy for application functionality on smart phones It shows a really interesting Android modification where one can selectively fake/mock unavailability of resources such as GPS or network to individual apps.
Mobile Token-Based Authentication on a Budget this is about using a cheap token to authenticate to your smart phone (using the digital compass).