Sadly, the Nook Glowlight 4. I really wanted to love it, and paid full-price for it as soon as it came out. It was immediately buggy (froze up randomly, didn't go into sleep mode) and of course no new features from when I used the simple touch so long ago. No custom wallpaper and had to use ADE for library books. For $150 I could have bought a Kobo Libra 2 on Prime Day!