Thoughts while watching the Starflight video:
Starflight is one of my favorite games of all time. It was also the first commercial PC game I ever owned, and I still have the box and contents for both Starflight 1 & 2.
I think I may have an early 360KB 5.25" EGA release, as it came in a tri-fold sleeve style packaging. I think I got it for Christmas 1988 or 1989. The files on disk 1 are dated 7/31/1986 through 1/28/1988, except for a couple of .BAT files dated 1/3/1980.
Someone released a fix for DOSBox that I think may be in the SVN and/or Ykhwong builds that fixes the Tandy color issue. Anything is definitely better than running in EGA mode in the EGA version, as there are some animations missing (planet in intro, docking bay doors) and such.
I would really like to see a definitive list of differences between the original and EGA updated versions. Some people have suggested that there may be deeper gameplay differences and/or other minor issues, but I'm not sure if this is true.
I've tried playing the Genesis version a couple of times, but always hated the added action elements (especially orbiting, landing and surface exploration).
Regarding diagonal starport movement, my memory is that holding down a diagonal direction makes you alternate between horizontal and vertical movement.
Anyone who doesn't plan to play Starflight should read spoilers on its story, as it has an interesting twist.