Ref: PC to controller comunication protocols

Looks interesting, there is a viewer and some example files here:
http://www.steptools.com/products/stepncwrite/javaview.html
The site makes a lot of noise about how wonderfull it is but I don't see much
else on the net, either good or bad (I'm going at it from a linux point of
view though).
It seems good but looks beyond the scope of an average microcontroller, a
simple file was around 1.5mb and a controller would need to store every point
referenced in the file (looks like about 5% of the file) or depend heavily on
a connected PC as a cut can references to previous cuts for its path. Parsing
the code doesn't look to bad though, it looks like g-code interpreting
components could be adapted for the majority of it and then the code it's
self would do most of the work if all the relevant parts could be stored and
easily parsed. Looks like it would be much simpler on an embedded system
though :)
cheers