Notifications API Beta White Paper
This white paper provides an overview on how Forum Nokia developers can implement the Notifications API beta, available using the Nokia Qt SDK, to add real-time push notifications to their applications. With up-to-the-moment, efficient delivery of lightweight notifications, developers application stays at the forefront of consumers' attention. At the same time, these mobile applications will be able to optimize bandwidth and battery use, giving customers increased functionality without adversely impacting the device or data plans.
Optimizing Mobile Software with Built-in Power Profiling
This document describes S60 software profiling tools that allow every developer to measure power consumption without any external equipment. Measurement analysis is carried out either on the mobile device or a PC. In addition, the document present a set of guidelines and good practices that energy-conscious developers should follow to maximise application use time. This document was originally published as a chapter in the book Mobile Phone Programming and its Application to Wireless Networking in 2007.

