The KDX, or really any Reader with PVI's 9.7" screen, will likely be the best option when it is released, but there will be better alternatives within a year. Color EInk is one possibility, but more likely in the short term is better LCD technology. For example the
Astak Spectrum probably uses the
Pixel Qi 10" color LCD screen and will likely be available early next year if not sooner. Screen technology often gets behind schedule (the 9.7" screen has been promised since the Kindle 1 came out), but the Pixel Qi screen seems real (no samples yet though).