Well, in the past that was necessary because it was a different system. Now that all power sources will have a unified system it's no longer necessary to put it in its own book.Flynn said:Do we know for sure that Psionics will not be in its own book? That's the model we've seen in the past (i.e. in 2nd Edition, 3E and v3.5).
I think (and hope!) we may get both: Just like they'll release a 'Martial Power' supplement after PHB1, there might be a 'Psionic Power' supplement.Flynn said:In the beginning of the 4E discussions, I came away with the feeling that there would be a separate Psionics book that was not part of the PHB series.