Janne Ofversten, day1 (battery and so on), nokia seminar

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)

consumers

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

QA

Energy profiler works only on Symbian;

They are considering to support EP on MAEMO;