How is this an add on?

With Microsoft Global Contact Access, you can use Pocket Outlook on your Windows Mobile powered Smartphone or Pocket PC Phone Edition to look up contacts in the Global Address List (GAL) on your corporate Exchange server.

[ Microsoft Global Contact Access for Windows Mobile powered Devices ]

Optional I can see, but it's called Pocket Outlook, not Pocket Mail. I guess I should be happy that it exists at all.

Update: This seems to be a big piece of poo. Perhaps I have to punch more holes in the firewall...