We have seen tweeting house plants and thermostats, but in a twitter-enabled home, nothing makes more sense than a burglar alarm.

Using tried-and-true Arduino magic, you can build a device that hooks into your existing burglar alarm. If the alarm is triggered, turned on or off, or malfunctions, you will be notified with a hysterical flurry of tweets. Imagine looking on your cellphone to find the following: “I think someone is in the house! I’m scared!” Hit the following link for basic instructions on how to build one yourself. [Kelvin's Thunderstorm via Hacked Gadgets via Slashgear]