At the RSA Conference a talk / case study about MOBOTS: A Pocketful of Pwnage was presented.
The idea was to create a application that would be downloaded to an Iphone or Android. The application which seamed harmless had the opportunity to demonstrate how they could control lots of smartphones. This was a concept not a real attack but proves it very possible to read the full article please go to
TippingPoint Digital Vaccine Laboratories blog and look for
MOBOTS: WeatherFist Exposed By Daniel Tijerina
or you can click here