Android garage door opener
http://bradfitz.com/garage-opener
"You need two parts: the Android App (apk link; Android Market link) and the server app running in your house. Further, the server app needs to be connected to X10 hardware to toggle your garage door."
Twittering Your Home - O'Reilly Mac DevCenter Blog
http://www.oreillynet.com/mac/blog/2007/03/twittering_your_home.html?ATT=Twittering+Your+Home&CMP=OTC-13IV03560550
"I’d like to share a few notes on my more prosaic experiment of using [Twitter] as part of my home automation system."