[ravic]

Here is what i know and tested.

1. 29.99 plan

Works with POP3/IMAP
Works with Exchange Sync (Including Push email). You company admin should enable this functionality for you to be able to use exchange sync via internet.

2. 44.99 Plan

In addition to what was listed in 29.99 plan, It adds "push email" capability for practically any pop3/imap email account (Ex:Yahoo )
This plan is not needed if you exchange server is already setup to push email via internet.
This plan also adds PC Sync capability.