Can an Adobe AIR app that's running in the system tray pop up a window?

Question

For example, if I were to write a calendar app on top of AIR, say with Flex, could this app pop up reminder windows for approaching appointments, just like Microsoft Outlook can

Answer 1

Have a look at this article on the Adobe Website, for creating your own Toast Style Popups.

(Credit for this goes to Duncan Smart, answering this question.)