Black on Red is a bit overdone but maybe late this year/next year. This group buy is going fairly well though so if everyone is interested in Red Alert I may do it after Portal round 2. That gives Tsangan time to do Cream Cheese etc.
By the way, if I do do Red Alert, can I do it in PBT? I would be sick to have a set that perfectly matches the Nyan/Portal keycaps... with the exception of the spacebar.