Project by Brian House and Kyle McDonald is a Raspberry-Pi-powered lightbulb attachment that can listen into nearby conversations (which are then posted onto Twitter) - video embedded below:

Conversnitch is a small device that automatically tweets overheard conversations, bridging the gap between (presumed) private physical space and public space online.

Information moves between spaces that might be physical or virtual, free or proprietary, illegal or playful, spoken or transcribed.

The Conversnitch Twitter feed can be found here