A ready to use raspberry pi bootable-image(open source project), lets you keep your raspi connected to the internet. Using google-hangout, issue chat-commands to your raspi to do stuff for you. I kept my GSM-sim card connected to raspi using Huawei-E173, now i can access sms send/receive from anywhere in the world - no need to pay expensive roaming charges. RBox is a lightweight linux distribution built with buildroot to turn your raspi into xmpp-chat-bot. No matter where you are on the planet, you can control your raspi and its peripherals just by sending chat messages. Here are the details: http://albert-david.blogspot.de/2016/01/rbox-remotely-deployed-gsm-sim.html