If your company uses Lotus Notes, you'll need IBM's free app, which can connect to version 8.5.1 or later of the Lotus Notes server and act as the client for email, calendaring, and contacts management.

If your company runs Novell's GroupWise and WebAccess is enabled, use the $6 GW Mail [23] app from Ghost Pattern software to connect to GroupWise Server versions 6 through 8 for email access. Ghost Pattern has the free GW Lite app to test compatibility. (You can use Apple's Mail app instead if your IT group installs the recently released Data Synchronizer Mobility Pack add-on to its GroupWise 8 server.) Ghost Pattern has the $4 GW Calendar app to let you manage your GroupWise calendar; it too requires enabling WebAccess on the GroupWise server.

If you want to create form letters, consider Christian Fries' $4 Mailer. It lets you create email templates you can then fill in. You can also attach various kinds of files directly to your messages.

EuroSmartz's $7 CalPrint for iPad lets you print your calendars, as well as organize them and their tasks. It pulls in appointments from the iPad's Calendar app, so you don't have to maintain a separate calendar.

To-do and task management