Right, and Microsoft was still putting so much development work into OS/2 in 1989 that there was still some sort of feeling that OS/2 was possibly the future of

Right, and Microsoft was still putting so much development work into OS/2 in 1989 that there was still some sort of feeling that OS/2 was possibly the future of Windows. (OS/2 development kits were shipped from Microsoft with Microsoft branding prominently on them right up until the OS/2 3.0 [WARP] split and the origins of Windows NT.) In hindsight it is much more obvious that Microsoft's involvement in OS/2 was something of a trojan horse to fund early NT development and a short-term hedge in case people did trust the IBM brand more than the Microsoft brand, but at the time it was much more confusing.