[youtube]http://www.youtube.com/watch?v=W45c9UOvWSo[/youtube]
A rather clever American managed to make a device that sends PUSH notifications to an iPhone using a PHP server and the Prowl application for iDevices. The device is made using "Arduino" hardware components, a code specially made for the device so that it sends a notification that a PHP server that is configured with the APIs of the Prowl application and sends a push notification to the iPhone. Notice in the video clip above that the device was attached to a mailbox and when the door is closed the device is activated and sends a notification to the iPhone.
This device can be mounted on almost any kind of objects, so we can use the system to receive notifications when someone enters our house, for example, or for anything else that will cross your mind. Everything is open-source and you can find more information here.
