GetJar researchers reckon the CD is a dead format and smartphone applications are the new rock and roll, predicting the dollar value of app sales made  in 2012 will be far greater than that of CDs. They say mobile apps will generate $17.5 billion of revenues by 2012. The research also claims that in 2009, the number of mobile app stores jumped from eight to 38 – and is set to further increase in 2010. …