What I would consider the killer features for this, if present (as in, if guaranteed these, I would buy it):<p>- The ability to use it as a drawing tablet for another computer. It's already a perfectly good large touch-sensitive surface meant for drawing, why should I need to buy a second one for Illustrator?<p>- ssh, and some way to connect an external keyboard. E-paper is excellent for a terminal, and this is big enough to be useful.<p>- Some way to use purely as a display, whether by some plug or by X-server broadcasting via SSH or some form of screen-sharing client. Most non-video uses of a computer (if color is not crucial) work just fine on e-paper.<p>- The ability to turn off cloud-sync. Sorry, but I'm not sending you everything I write. For some people that might even go deeper than a personal choice (NDAs, if they work on anything proprietary, depending on how they're phrased).<p>So, basically, the ability to use it for its components and not just the singular agglomeration of them that you envision. I put that above even the ability to write your own software for it.<p>In other words, if ReMarkable has the following, I would have already pre-ordered, even if it's got nothing else:<p>- an e-paper touch display<p>- plus Wi-Fi, USB, HDMI, etc.<p>- the ability to disable automatic cloud sync<p>- with four built-in programs:<p>-- ssh<p>-- drivers-for-use-as-drawing-tablet<p>-- VNC client<p>-- The reader/drawing program demonstrated in the video, for use alone