GSM Garage Door opener

Not really an arduino but this may be of interest to some home automation enthusiasts

http://www.aliexpress.com/item/GSM-Gate-Opener-RTU5025-3G-Garage-Door-Open-Remote-Controller-Quad-Band-GPRS-Access-Control-3G/32624208044.html

Not tried but it appears to be an "out of the box" way of controlling a few relays from a mobile phone