Windows Mobile 2003 Second Edition software will continue the trend of enabling innovation and meeting customer needs. Second Edition delivers a new platform to Original Equipment Manufacturers (OEMs), Mobile Operators and Independent Software Vendor (ISV) partners that enable targeted hardware and software solutions to solve specific end-user scenarios. Second Edition releases key functionality that will result in exciting new hardware designs that address key market segments.

The 'Second Edition' naming reflects that this is a platform release implementing vital new features that enables partners to innovate on the Windows Mobile 2003 experience. As a developer, Windows Mobile 2003 Second Edition introduces new device form factors including landscape and square screens as well as devices supporting high dpi screens. This is both a challenge for developers — who may have assumed certain screen orientations and resolutions — as well as an opportunity to satisfy specific usage scenarios and to enhance existing application experience. For example, a piece of mapping software could now support higher resolution and hence more detailed maps on a high resolution device.

The purpose of this document is to provide a developer's overview of what's new in Windows Mobile 2003 Second Edition software. This article forms part of the Developer Resources for Windows Mobile 2003 software package.