There is also the technology used by the reinkstone.com. The big advantage is that they can turn color on and off, without getting the reduced contrast that ein

There is also the technology used by the reinkstone.com. The big advantage is that they can turn color on and off, without getting the reduced contrast that eink gets. That said they just delayed their delivery to autumn I believe, so likely they have issues with production consistency or so. It's still not comparable to a proper color display, but I wouldnt mind one of these for readi g papers, where I can switch to color for graphs etc. It would also make highlighting etc much nicer.