After talking this over with my co-author, we've decided to submit the following errata (it is not official unless it comes from wizards; we're just submitting this):
p 22, 2nd column, replace sentence “Instead, each time the psion achieves a new level, he gains 34 power points.” with: Each time the psion achieves a new level, he learns a new power of any power level that he can manifest (according to his new level) that is within his primary discipline.
p 58, Improved Manifestation, Benefit, add third paragraph: Additionally, you gain 19 power points when first taking this feat.
p 58, Improved Manifestation, Special, extend 2nd sentence (delete .): , and you gain a number of power points equal to your previous benefit + 2.
And, as a bonus for the psy warrior:
p 23, 2nd column, Bonus Feats, add feat to list after Spellcasting Harrier: Spell Knowledge