nokia trends

• cloud computing
• context awareness
• augmented reality

• N97 without activity – 5mA, 300 hours
• N97 with activity 6 background apps – 55mA, 27 hours

• battery capacity increses 5-10% annualy
• battery is the biggest component in the device
• they optimize number of network accesses and amount of transferred data. (could we consider an optimization by using several kinds of networks)

• cpu, display, wireless
• software optimization decreases power consumption too
• active pixels consumes a lot
• opt: draw something if it is actually seen by user
• efficiency of network edpends on conditions: NW strengh, broadcast
  • growing netw applications, like keep alive tcp - there are places for doing somethig
  • connected applications is the biggest challenge
  • tradeoff signalig: availability vs energy

• Energy profiler works only on Symbian;
• They are considering to support EP on MAEMO;