Download an event as iCal file

Greetings from Moldova! I would like to check with you the following idea for a module: download an event as an iCal file.

It was motivated by a need to attach a calendar event to the messages sent by the Signup module. A history of this can be read here. Also there you can find the actual module. It's already written, since at that time there seemed not to be an existing solution. I would like to put it on drupal.org.

So what do you think?

Vitalie