I have a Kobo Touch which I picked up in December. My favourite aspect of it beyond the e-ink display is the internal micro SD slot. Not only is there an external micro SD, but the device's built in storage is removable too. I picked up some extra cards so I could mess around with the software without losing the original soft/firmware. I've played with a couple of Android and Linux homebrew builds for it. On the stock firmware, the Pocket app is awesome. I can add an article to Pocket from any of my other devices with a tap or click and read it whenever I want on the Kobo's e-ink display.