A new demo version is available V20121118

There is a new version available at the downloads page.
Not much is included except a extended demo time and some updates to the user interface. The user-select dialog has been replaced with a in-game menu.
You now also have a "fake fullscreen" option in the settings menu instead of the "fit to window" option. It's actually the same, but it takes care of the size and borders for you :p
If you are having troubles with this in a multi-monitor setup, then please give me some feedback about your setup, so that I can make a fix for it.
Enjoy ^.^