Raspberry Pi
From TheAnalogThing
The Raspberry Pi is a small single-board computer known for allowing to hack with hardware thanks to it's general purpose input/output (GPIO) pin header. The computer also has an Audio input/output, but the GPIO header has no analog-to-digital (ADC) converters. It can however be interfaced to any custom extension boards with 3V3 logic.
For further information, go to the English wikipedia article about the Raspberry Pi
Efforts of connecting The Analog Thing to a Raspberry Pi
Please collect your efforts of connecting The Analog Thing to a Raspberry Pi at this point!
Photos
In this revion, the Audio input clearly stands out as blue 3,5mm jack