Another in via J chot. Now this is pretty bad ass. If you have an old NES lying around, you can now easily turn it into a synth. The Wayfar Midines is an NES game cartridge with a MIDI cable. You pop the cartridge in and hook the MIDI cable into the MIDI out of your device of choice, and then plug away. No hacking necessary. What's interesting is the cartridge also adds samples "featuring TR707, TR808, TR909, LINN, Amen+other breaks, stabs, and essential chip battlz." It also comes with NesFX, a retro visualization program that plays along to your incoming MIDI data. It's interesting comparing the sound of this vs. the SidStation and other C64 based units. I've heard some NES pieces before and wasn't really impressed with the sound. Now this is some lo-fi goodness, so make sure to check out the samples on site. Title link takes you there. Thanks J chot!

"Midines is a hardware / cartridge interface (game) that enables MIDI control of the 8bit NES sound chip. Midines allows the 8bit NES to join the ranks along side other retro gear in the professional MIDI recording studio. NesFX is a retro graphic visualization that is seeded by the incoming MIDI sound data, and is included with Midines.
Version 1.1.0 features 256 samples (accessible in two keyboard banks) featuring TR707,TR808,TR909,LINN,Amen+other breaks, stabs, and essential chip battlz."