I like the idea too,
The way to get it added is to get community support through votes so log on: https://bugs.maemo.org/index.cgi?GoAheadAndLogIn=1 and create a new bug request "bug" as in annoy.

while you are there you can vote for other requests too, i recommend voting for: https://bugs.maemo.org/show_bug.cgi?id=6892 if you use the calendar ate all.