Programming for handheld devices is not easy; they have smaller displays, tricky input mechanisms, less memory and reduced storage capacity. This practical book offers hands-on programming experience to programmers who are new to the OS, to help them get to grips with all aspects of application development. It will enable programmers to build fully functioning applications and also serve as a comprehensive reference for the more experienced programmer. There are an estimated 500 million mobile phone users worldwide, and understanding Symbian OS is a key skill for mass-market application development The recent global launch of the first v7.0 device, the Sony Ericsson P800 (with UIQ) - the most advanced phone available in the world, available in shops by December 2002- is expected to raise the profile of mobile telephony enormously. Especially so in the US, because this is a tri-band phone, thus giving US programmers a unique opportunity to appeal to global markets.