Yes, even the SX-70: The Impossible Project is making film for them! And for a number of other classic Polaroid cameras.
Polaroid themselves got out of the instant film business in 2008; a group of enthusiasts bought up the machinery from the last few plants, leased space from Polaroid and...started from scratch on the chemistry: Polaroid had made their own dyes, etc. and it was information they couldn't share. It seemed impossible -- but it wasn't.
A couple of years ago, I packed away my Dad's old SX-70, thinking it was long odds it would ever take another photograph. Looks like I was wrong.
It's not that "retro," but it was a lost technology and now it's back. It will probably never again be the preferred choice for vacation snapshots but it is certainly nice to have the option.
(First found here, thanks to her).