The Parallax Propeller (P8X32A) is a 32bit microcontroller with a difference. It contains 8 cores (called cogs) and can run different routines simultaneously. The propeller doesn’t seem as popular in the UK as it does in the USA but that’s probably because there are only a few places that stock it and it’s more expensive that the Arduino. It’s a shame really because it really is a great little chip. One other thing that may have caused the lack of adoption was the fact that it had to be programmed in a language called SPIN. Over the past couple of years however, Parallax have listened to the masses and have now provided a C programming environment for use with the Propeller.