Vaporware is a product, usually software, which has been announced and is long in development, but has not yet been released and not been officially cancelled either. The lack of a substantial release has led these products being referred to as "vaporware". This list documents products which have been labelled as "vaporware".
Products which once were considered to be vaporware which eventually surfaced after a prolonged time:
The bona fide beginning of the new millennium is almost upon us, but some things never change: The tech industry continues to whip up excitement by promising amazing new technologies, only to crush our spirits by delaying, postponing, pushing back or otherwise derailing the arrival of said goods – sometimes indefinitely.
the keyless smart lock that's designed to fit over your dumb deadbolt so you can lock and unlock your door with a smartphone remains so much sexy-looking vapourware
The last year of the last decade before 2000 has come and gone, but the Vaporware 1999 "winners" are still a dream to some, and a nightmare to others.