Whats the relationship between the Calendar and Mail apps on the iPad and their iPhone and Mac counterparts?
The iPad’s version of Calendar and Contacts may look somewhat different from their iPhone counterparts, but the functionality is much the same. You can sync e-mail accounts, calendar events, and contact information over the air using the device’s support for Apple’s MobileMe or Microsoft’s ActiveSync technologies–if you don’t have access to either of those, you can still sync the information from your computer via iTunes.