I'm seeing "serverless" as a term of art in the cloud services space now.
I'm happy about it, but I'm also feeling a little grumpy-old-man about it (the term, not the concept) because I was into Google App Engine before it was cool.
(GAE is still around, but broadly Google decided that the real money was in chasing Amazon because the companies with big bucks to spend are too control-freak to trust an algorithm someone else came up with to manage their dynamic scaling. This was kinda the beginning of me watching Google decide that "long tail economics" was a myth or, at least, not where the fancy big-denomination dollar bills lived).