Dave Nanian says he’s found a PaperPort replacement for Mac OS X:
Fujitsu (Fujitsu?!?) has released a Mac-compatible version of their ScanSnap scanner, the memorably named Fujitsu ScanSnap fi-5110EOXM (affiliate link). This scanner does duplexed, color scans at 15ppm, has an excellent paper feed mechanism that doesn’t seem to jam, has a decent driver that doesn’t crash, comes with Acrobat 7, and generates excellent quality, well-compressed scans. And a higher resolution, multi-page, color PDF from it is smaller than the one-bit, black-and-white compressed scans, in a proprietary format, that I was getting from the HP/Working Papers combination.