Microsoft today released OWA (Outlook Web App) for the iPhone, iPad, and iPod touch. To use the app you must have the latest update for Office 365 for business.
Features: Get work done faster with email - Organize your email quickly with Conversation View, Mark as Junk, Flag, and Categories - Quickly search or browse email in all folders including Outlook Favorites Manage your schedule with ease - Schedule meetings using attendee free/busy and room finder - View shared calendars including delegate support - Use your voice to look up a contact or bring up your schedule Keep business data secure - Remote wipe erases only your corporate data in OWA for iPhone and leaves your personal data on the device alone - Separate passcode for OWA for iPhone provides an additional layer of security
You can download OWA for iPhone from the App Store for free.