This is the letter that was included with every copy of Cubicolor sold by
the author.  This has been taken from the Digital Press Guide, 6th
Edition.

Dear _______________,

I was made aware of the interest in the old 2600 cartridges only recently,
and I am sincerely flattered that anybody would pay attention to these
games anymore.  I designed Cubicolor in 1982, right after releasing Demon
Attack at the Winter CES.  At the time, I was growing tired of the endless
array of wave oriented pattern games (the code name for Demon Attack was
Death from Above).  I had been facinated with Rubik's Cube (this was 1982)
and had a collection of Rubik type puzzles in my office.  One puzzle in 
particular was a two-player game called Rubik's Race, sold by Ideal Toys.
I decided that a 2600 version of Rubik's Race would be quickly done while
I was working on a new idea, which was a game themed as a future version
of Noah's Ark.  This game later became Cosmic Ark.  Cubicolor was designed
and programmed in 8 weeks, and was never released, as the market for space
games continued to grow, and Imagic did not want to bother with a puzzle
game.  I am lucky to have kept 50 copies of the ROM, and can guarantee
that no more will ever be made.  I hope this 'rounds out' your collection
and that you enjoy the game.  I still enjoy playing it, and have yet to 
find someone that can beat me at it. 

Have fun!

Rob Fulop