I just sent the files for Psionics of Lore to John Stater, and soon you will have all the mentalist goodness for B&T. Once again, this will be free, and unfortunately art-less. In the future, I hope to "re-do" these supplements with some art. I was going to do some for this supplement, but I felt it has been delayed for too long.
The supplement will contain 3 new races, 3 classes, about 12 feats, hundreds of psionic powers, dozens of psionic items, and a handful of psionic creatures. Aside from things that mechanically clashed with B&T, the only thing I didn't include was the soulknife. This is only because John is releasing that class in his NOD Companion book, which is coming soon I believe