I didn't pay much attention to the project at the time, but: Might it have something to do with the word "OS" in the title? It's never worked except for Apple,

I didn't pay much attention to the project at the time, but: Might it have something to do with the word "OS" in the title? It's never worked except for Apple, but because Apple is selling a whole product, not an OS, it doesn't seem to hit in the same way. Marketing something as "____ OS" appears to more or less guarantee a marketing failure.