This white paper explains how the Palm® webOS™ platform can integrate with enterprise email systems such as Microsoft® Exchange Server. WebOS can integrate with most email systems used in small, medium, and large companies without additional software or hardware. Also, the webOS platform uses the Palm Synergy™ architecture to allow individuals to synchronise personal calendars, contacts, tasks, or email while segregating that information from the enterprise data. Together these features enable devices based on the webOS platform to provide a superior experience for users who want to use one device to manage their professional and personal lives.
Palm have a very detailed guide here on how the WebOS integrates with Microsoft Exchange Server along with some other useful information including; Synchronisation with Exchange, Device management and security, Exchange SSL security, Exchange Reports, POP3/IMAP4 and SMTP email, The webOS email client, PIM data and Palm Synergy, Using webOS with Exchange.