Microspeak: who mentioned software?
bloatware
(General industry usage) Software that takes up a huge and disproportionate amount of space on your hard drive. Synonym: Spacehog.
vaporware
A Microsoft classic, dating back to at least the early-'90s era of Microserfs (likely before), and now escaped into the world at large. Software that was conceived (and probably promoted and advertised) but never came to fruition; by extension, a foolish or fanciful conceit.

© Ken Barnes

Vaporware is generally only an exercise in public relations, but bloatware is a real nuisance that should be banned! Unsolicited user-friendliness and over-sophistication often defeat the original purpose.