BlackBerry - How to add content to the Home Screen?

Question

In the Windows Mobile world you can create a so-called Today plugin that adds content to the phone\'s main screen -- the one where you see the number of missed calls, unread

Answer 1

To provide some information on the Home Screen you can use App Icon:
Add a notification icon at the status bar in BlackBerry JDE 4.5.0
alt text http://img691.imageshack.us/img691/6459/icoupdate3.jpg Other thing available from RIM OS 4.6 if app indicator:
Blackberry - How to use notification icon in statusbar
alt text http://img198.imageshack.us/img198/3807/standardindicator.png