Lover's Cups, a MIT Medialab project by Jackie Lee and Hyemin Chung:

Lover's Cups explore the idea of sharing feelings of drinking between two people in different places by using cups as communication interfaces of drinking. Two cups are wireless connected to each other with sip sensors and LED illumination. The Lover's cups will glow when your lover is drinking. When both of you are drinking at the same time, both of the Lover's Cups glow and celebrate this virtual kiss.

The idea is to shows how computer interfaces can enhance common activities and use them as communication method between people: the act of drinking is used as an input of remote communication with the support of computer interfaces.

Why do I blog this? well sometimes awareness tools are utterly crazy!

More about it: the authors wrote a paper for CHI, check the pdf.