The market for E Ink tablets reached a pivotal moment this week with reMarkable's unveiling of its new Paper Pro — now with color E Ink, not just black-and-white. Now the big question is whether Amazon will join the trend with a color Kindle e-reader or Kindle Scribe. The technology enabling the shift from black-and-white to color is the Gallery 3 color display, from E Ink Holdings, a company that spun out of the MIT Media Lab in 1997. On this episode of the GeekWire Podcast, we learn more from Timothy O’Malley, associate vice president of U.S. operations at E Ink, about the evolution of the technology and the growing applications for E Ink displays.  Related links: Challenged by Amazon, reMarkable unveils new ‘Paper Pro’ color tablet. Launch event video for the reMarkable Paper Pro. Here's the color-changing car mentioned by Tim on the show. With GeekWire co-founder Todd Bishop See omnystudio.com/listener for privacy information.