While I was doing the research for a recent talk on Polaroid and Ansel Adams (in conjunction with a 900+ print exhibit of SX-70 images), I learned that SX-70 film is now being made by The Impossible Project in Holland.  They are also making black-and white SX-70 film and have plans to bring back 8×10!  You may also know that Fuji has an SX-70 type instant camera and Polaroid has reintroduced one!  Fuji is also offering color and BW films in both 4×5 and 3×4 packs (not individual sheets).