Computer Slang. a product, especially software, that is promoted or marketed while it is still in development and that may never be produced. (http://dictionary.reference.com/browse/vaporware)
"Robert Wise, their author, had to admit that the standards were not based on much evidence. He was not convinced that they would make the hospitals that implemented them better prepared. He and his colleagues decided to wait until disasters happened, then debrief affected hospitals to figure out how much was vaporware and how much was real."
- Sheri Fink, Five Days at Memorial: Life and Death in a Storm-Ravaged Hospital (2013)