My key note speech at Droidcon 2012 promoting DT's leadership in the Smartphone Challenge initiative. Smartphones have catapulted the distribution of mobile apps to new highs with increased usage of mobile networks. The Smartphone challenge project goal is to optimise the interaction between devices & networks DT understand the threat from network intensive, badly designed applications and developed developer guidelines. DT alone cannot influence the market and we decided to leverage the support of GSMA, industry affiliates and developers themselves.