Sprint PCS Vision Personal Connect lets you recieve and work with your Outlook Email, Calendar and Contacts.

All you need is to logon to Personal PCS Business Connection site and download the Business Connection client software. This software needs to run on your PC in the Corporate network and have access to the Exchange Server. The software also supports to use your domain account to connect to the network in case your PC is offline. (Did not test that).
The client software installs very nicely and is easy to configure. You are up and running in no time.
Under the PCS Business Connection site you can see now your Emails like in Web Outlook, and of course the emails are now also showing up on your phone.

Sprint charges $5/month for Personal Business Connect.

Camera Phone Buyer's Guide

More Vision and Sanyo 8100 How-Tos