Although it is ironic to see that messaging systems are being accepted as mission-critical, this is the reality of the always connected workplace of today. Therefore high reliability, security, and consistent availability of the messaging systems became a norm to meet demanding user needs. As a result, Microsoft augmented Microsoft Exchange Server 2003 with feature-rich mobile messaging solutions with direct synchronization to Windows Mobile-based devices. Windows Mobile solutions are implemented in a full range of horizontal and vertical industries on Pocket PCs, Smartphones, and even Tablet PCs. Building on the Windows Mobile device foundation and wireless connectivity, Microsoft provides connectivity to back-end messaging systems in a simple, rapid, and cost-effective means. Finally, the familiar and intuitive Microsoft Windows interfaces expedited the adoption of the mobile messaging in an extremely flexible platform from mobile devices to wireless connectivity with strong security and systems management framework.   PocketPC Windows Mobile puts the power of Windows software into a Pocket PC with many Office applications that users are accustomed to; these include Pocket versions of Outlook, Word, Excel, Internet Explorer, Terminal Services client, and Windows Media Player are among the products that enhances the remote worker productivity significantly... Smartphones A Windows Mobile-based Smartphone integrates PDA-type functionality into a voice-centric handset comparable in size to today's mobile phones according to Microsoft; these devices are basically optimized for voice and text communication while allowing wireless access to back-end messaging systems as well as corporate and Internet information and services... Tablet PC The Tablet PC is referred to as the best PC ever considering the evolution of the notebook PC. Convertible Tablet PCs look much like today's notebooks with integrated keyboards and clamshell designs. With a convertible Tablet PC, the screen can easily be rotated and laid flat to convert to Tablet mode... Exchange 2003 and Mobile Features Microsoft entered the mobile market with a strong commitment with Microsoft Mobile Information Server and aligned its enhancements with the developments in the mobile computing space. Exchange 2003, however, integrated mobile functionality of Mobile Information Server in addition to many new features and functions such as Outlook, Outlook Web Access, Exchange ActiveSync, and especially up-to-date notification...   Trademark Acknowledgements Any company, product or service names are trademarks or service marks of their respective companies.