Wirelessly posted (Breaking Ball)

You're not alone, but definitely in the minority.

The BlackBerry is still primarily a corporate device, and most business users already have a PIM solution... Outlook, Lotus Notes, or Groupwise.

Outlook also comes with Microsoft Office, which is commonly used by most consumers as well.

It doesn't make a whole lot of sense for RIM to reinvent the wheel and come up with their own PIM software.