ActiveSync
Exchange 2007 with ActiveSync provides instant 'push' email to any Windows Mobile device, including the Treo 700w/x, Motorola Q, TMobile Dash, Samsung BlackJack and many other smartphones.

Imagine...always-synced access to your email, calendar, and contacts. Hosted Exchange 2007 provides all this and...

• Instant setup. 'Native' support for Windows Mobile means your users can get started right away.
• Advanced features. Manage mobile devices from inside your Web mail or from your control panel.
• Fully-managed. No servers to buy and maintain, no licenses to purchase and track.
• No monthly fees. Introductory offer - purchase Microsoft Exchange 2007 now and you can have ActiveSync for all of your mailboxes with no activation charge or monthly service fees.

Sample list of supported phones: