I have been waiting for Apple to release a successor to MB12 but it does not look promising in the near future. Moreover, I am a big fan of OLED screens and had OLED tvs and Iphones for a while, with perfect blacks and great contrast. Turns out, HP has an ultrportable with 13.3 in OLED screen, Spectre 360. I have not seen other manufacturer using this size OLED panel, seems to be sourced from limited production run by Samsung. While this laptop has a fan and heavier than MB12, I am thinking about rolling the dice on it to see if an OLED laptop would be the upgrade I was waiting for. 4k OLED screen in a small package should be great for extensive reading and reviewing images that I do for work, I just hope that panel will be uniform.