Jane Sales, Lead Author Jane joined Symbian (then Psion) in 1995 to lad the team whose goal was to create a new 32-bit operating system, now known as EKA1. This goal was realized two years later, when the Psion Series 5 was released. Since then, Jane has taken on variety of roles within Symbian, Including product management, systems architecture and setting up a small product -focused research group in Japan. Jane Studied at Jesus college, Oxford, where she gained an NA in mathematics in 1982. After that, she became part of a small team building a microcomputer to which they ported CCPIM, It was he start of a long-lasting love of systems programming. In 2003, Jane Moved to the South of France and Began work on this book She would like to thank her husband, Roger, for his moral and financial support over the Succeeding 18 months. Corinne Dive-Reclus Corinne joined Symbian in 2001 after several years at Baltimore Ltd, where she designed the embedded software of ACCE ( Advanced Configurable Crypto Environment), a cryptographic hardware module certified FIPS 140-1 Level 4. In 1987, her first job was as a presales engineer at Sun Microsystems France where she was exposed to the concept of Network Computing & Internet and to its very first remote attacks - at a time when this was still confidential. Being more interested in development than presales, she subsequently worked as a software engineer for Concepts and Implicit, developing an RAD )Rapid Application Development) Programming Language for the creation of distributed data-oriented applications. Since joining Symbian, Corinne has been the Platform Security System Architect, and has worked on the platform security architecture from its initial design to its implementation in Symbain V9. To ensure that all layers of the operating system will contribute to its overall security, she worked extensively with Andrew Thoelke and Dennis May to validate the security features of EKA2, design new services such as Publish & Subscribe and Capability Model, as well as defining the new behavior of the file server, known as Data Caging. For this work, Corinne received the Symbian Technical Innovation award in 2003. Fulfilling an early passion for Prehistoric Archaeology & Computing, Corinne graduate from the Ecole National Superieure de Geologie, a unique French Institution combining a five-year curriculum in Engineering and Earth Science. Douglas Feather Douglas Joined Symbian (then Psion) in 1994. He started by leading the writing of the text formatting engine for the Psion S5. He has also worked in the Web Browser and Core Apps teams where he rewrote most of the versit parser to greatly improve its performance. For five out of the last seven years he has worked mainly on ht Window Server, where he added full color support, a framework to allow digital ink to be drawn over the other applications, support for multiple screens and to be drawn over the other applications, support for multiple screens and transparent windows. Douglas has a BSc in Mathematics from Southampton University and a PhD in Number Theory from Nottingham University. he is a Committed Christian and regularly engages in vigorous theological debate, to defend the biblical truths about Jesus Christ, at Speaker's Corner (Hyde Park, London) on Sunday afternoons.