I've created an ICAL file that'll let you import the schedule of DC21 talks into your calendar.
It's the first item on the DEFCON 21 ebooks page.
Save this file and then import it into your favorite Calendar. If you have an Android phone you can use Google Calendar and view the schedule and talk descriptions. I'm sure the iPhone has a way to do this also.

Feel free to let me know what you think.

Please copy this thread to the "Defcon 21 and beyond" forum when it is created.
Please consider placing some reference to these files on the main con site.
Please consider mentioning in some of the various twitter feeds out there.