fkjr2, are you using the view folders? They have preset views so you can find just about any task coming due or overdue.
As for tinkering with settings, I'd like to see the ability that new tasks can be set up with a user template rather than blank to make it easier. I think setting the due date and alert are pretty simple using the trackball.
If you have specific suggestions, send them in. Rexwireless had made changes we're requested.
It seems the RIM OS is much more limited or I guess it is more correct to say the API is limited compared to what is available in WM. Every version of the BB does get better.