Having known, worked with, and done business with both Gary Kildall and
Gordon Eubanks, I was drawn to the following from Herb Johnson's web site:
"Udo Munk posted in comp.os.cpm in Sept 2007, two references to Gordon
Eubanks interviews. One is at this link. It's a ComputerWorld oral history
project where he was interviewed in 2000 about his life and history. He
discusses his early work on BASIC-E and CBASIC, with Kildall and for IMSAI,
at length."

That link (at this link) is probably the purest and most accurate depiction
of the events that preceded and eventually transpired into the evolution
from CP/M being the pre-eminent operating system for "microcomputers", to
the dominance of Microsoft's PCDOS.

My own recollection of system comparisons comes from early 1982 when I
received an early version of Microsoft's DOS along with a letter from one of
Bill Gates' associates elaborating on possibility of further licensing
rights. I ran the preliminary O/S on one of our prototype 8/16 bit systems
(the "Falcon"), and my first impressions were that: a) the convention of
"destination/source" used in CP/M had been reversed in DOS; b) the "feel"
and conventions of directory commands was far more UNIX than CP/M, and was
somewhat foreign to me as I had not much time on a UNIX platform, having
been weaned on CP/M from my first days in working with micros. There were a
few other quirks that I noticed as I played with this "new" platform, and my
personal biases kept me more inclined to stay with the Digital Research
platforms at the time.

But I have to fully agree with the oral history provided by Gordon in the
above-mentioned links; Gary was not a business man... he liked his toys and
"play time". His wife, Dorothy, and I got along great and I still have some
CP/M and MP/M mementos that she thoughtfully brought over to me when we both
were exhibiting at the San Francisco West Coast Computer Festival in Brooks
Hall, 1982. I confess to have been a bit smitten with Dorothy at the time,
but that's a subject to be discussed over a beer and a 'burger later some
evening!