It's a megasquirt loaded with MSnS-E code. You can look at this website for all the "features".
http://megasquirt.sourceforge.net/extra/. It also has the necessary hardware modifications to work with a wasted spark ignition system and read a hall-effect crank sensor. A regular megasquirt without these mods can only do fuel control.
However, the code that comes with the rs-autosport pre-built box will be the released version which does not have the NGC decoding stuff. Since its so new and hasn't been tested fully it's not part of the actual realease. You'd have to download the NGC firmware (linked in the original post in this thread) into the megasquirt for it to work. I'm sure once a few people get SRT's running on the megasquirt it will get added to the official release and then you could order a megasquirt from RS-autosport ready to go.
