Hello,
Before I begin; parallel computing is the way in which you can run two or more programs at the same time with out having to dedicate a thread to each program.
I've been reading up about Parallella -a new parallel supercomputer- which is now priced at $99. This board uses Parallel computing to run and is amazingly fast.
It comes with a normal ARM CPU but its the Microprocessor that does it all. It comes with the Epiphany-IV 64-core 28nm Microprocessor (E64G401) (64 Cores!). The Epiphany-IV 64 runs at 100 GFLOPS and 800MHz Operating Frequency, you can see the rest of the specs here: http://www.adapteva.com/products/silicon-devices/e64g401/.
It comes with Ubuntu pre-installed and I think this could change Bitcoin Mining and beat ACSI! What do you think about, I'm on the waiting list once they're ready to sell these I'm defentily getting one!!
The main point that hits home is the fact that It will only run on 5 Watts and will be the size of a credit card!
Here is the Main Site: http://www.adapteva.com/.
Here is the Parrallella: http://www.adapteva.com/products/eval-kits/parallella/.