I still send stuff to the printers' (as in when I'm getting some offset printing done) in EPS format, which is Encapsulated PostScript. In the graphics arena PostScript is still certainly a big deal. For everyday office and home use, it's less so. The medium range HP LaserJets we buy for that sort of use still have PostScript, though. It seems to be bundled with the network enabled versions. And yes, given that PostScript and PDF are both from Adobe, they are somewhat interrelated. There's a lot of PostScript buried in PDF.