I'm entering the fray a little late, but I'd recommend a Spycraft Shadowforce Archer approach to psionics. Feats to gain access, then skill-based to manifest, as opposed to power points or "spell slots."
3catcircus - this is a bit out of the scope of what we're looking to do.
Primarily, because we're looking to update the 3.5 psionic rules for Pathfinder, and second, because Green Ronin already did that - and did it quite well - for 3.5.