Not that I have heard. It is one of those house-agent [realtor] abbreviations that becomes a matter of normal use.
As for all-singing all-dancing, it is wonderfully useful to say that the object does just about everything you could want or need, even if you don't actually need all these things. Like cellphones that can surf the net, download umpteen songs, be used to watch tv, take photographs, record messages, send text - and run out of battery power at the exact moment that you really
need to make a telephone call.
