I remember my dad getting a promotional shirt for OS/2 with the caption "Flight 4.0 to Chicago has been delayed, I'm taking off with OS/2"
The idea being that Windows 95 was internally called Windows 4.0 with the codename Chicago.
I keep on searching for it but can't find it anywhere.
And Bill Gates on OS/2 in 1987: "I believe OS/2 is destined to be the most important operating system, and possibly program, of all time."