There is a recurring theme that the tech industry is busy cranking out fluffy social apps rather than hardcore technology. Not the case, say Chris Dixon, Benedict Evans and Balaji Srinivasan. Not only are tech entrepreneurs going after the deficiencies in healthcare, transportation, finance, energy - you name it - with new approaches riding on top of sophisticated technologies, what looks like fluff today often wields some serious influence tomorrow.

Apple and Google won the mobile OS war, but the next war – to build big businesses on top of Android and iOS – is just beginning. Andreessen Horowitz Partner Benedict Evans untangles what the next phase of mobile means for entrepreneurs, Apple and Google's competitors, and consumers eager for the next great gadget.