On the Pixologic FAQ section, there is a question of whether or not 4R2 is 64-bit, and the answer is: "Zbrush 4r2 is not 64-bit, but Zbrush 5 will be." So if this is ZB 5 we're getting, then it'll be 64-bit. @MagicSugar, i know about the modelling capabilities of the Transpose Action-line, and i'm fine if they keep that…