It looks like you can still buy it on their site:
http://www.variantpress.com/books/on-the-edge
I thought a 2nd edition was coming out in the future.
Could be wrong though.
However, its a GREAT book! Lots of fun reading!
I laughed out loud when Bil Herd brought in a plant to see if the plant or their manager (Julian?) would give a better answer.
Oh, I can't say Elroy anymore...I have to sing it. ;-)
-P
Looking at the site I have to say I am quite unimpressed.. 5 books available... 4 of which, (including the one requested in this thread) are all out of print and sold out...
FAIL
