A python application for Raspberry Pi controlling GPIO via gmail and many more features.
With this application you can control GPIO pins via Email, view a live image taken via the Raspi-Cam and temperature measurements in a Dropbox.
But wherefore do you need it? For examle if you have an awning, which shouldn't get wet thus you want to control from far away... And many more, this is just what I use it for.
This section will be following.