Exactly what I was thinking. This is the third recent post to HN using "real-time" in this fashion. They're hijacking a term which already has widespread use and which, "doesn't mean what they think it does," to hijack a line from Princess Bride.
Didn't we call websites that update without a manual page reload "AJAX" just a few minutes ago? And yes, even if there's no XML present, but at least it's an abuse of a pretty new, web-specific term.
I propose we call all that stuff "FEFYOM" (Fast Enough For You Old Man) from now on.
http://en.wikipedia.org/wiki/Real-time_computing