Absolutely. Made even easier by my other app: [RELEASE] Sensor Groups+
So, you can use my app to group like device (e.g. window contact sensors) and there's an option to generate a list of which devices are open. Stick that into a dashboard tile.
You can easily add additional devices and add tiles to show their current state (on/off, open/closed, etc.). Some of the community dashboard apps, like [RELEASE] HD+ - Android Dashboard even have logic to automagically update the tile color and icon to reflect the status.
