The Impossible Project did it; they released new film for Polaroid cameras. The first film out is for SX-70-style cameras only; good thing I have three of those (two actual SX-70s and a OneStep). They'll be releasing 600 and Spectra style films over the next several months. The 600 is supposedly a more traditional black and white film, unlike the PX100, which has a kind of sepia tone. It also seems pretty picky; you need to protect it from sunlight, you need to develop in a narrow range of temperatures, and so on. Still, I've seen some pretty interesting shots so far on Flickr. I ordered five packs of the PX100 on the day it became available, so hopefully I'll have it soon.