Here's a more fun, but also more technical Siri. A developer has come, first tinkering with an electronic piano, capable of playing at a distance, but also to program Siri to be able to play the piano with an iPhone 4S. The piano?
A Yamaha Disklavier is capable of recognizing a piece sent by the iPhone 4S as a MIDI file, via an Airport Express.
The developer who designed this "hack" of Siri even added the "Play it again," to replay the song on request. The great art!
