few points... before i get back to lurking
* these changes seem quite akin to what the players want, and hopefully brings it a few steps closer to be in the PHB down the line . . . (envisions a time where psions and clerics and rangers and fighters can sit down at the gaming table of brotherhood . . .)
* crystals . . . why? well, energies can be stored in rocks, like crystals. it was just taken to crazy lengths in the PsiPHB, i think. it's not just for crystals, look at the stones from "Temple of Doom" which were activated. (actually google the concept, such stones do exist in india and are speculated to be ancient power sources for the vimanas . . .)
* psionics isn't just sci-fi, which alot of people thought it was. this is the backlash of the movie the 'matrix' which had things like 'run up the walls' etc. personally i think a psionic character is the 'magic' mystical master to the 'might' character of the monk -- both, imo, have eastern flavours in some respects.
completely different attitudes towards using your body and minds than the more western/european big plate mail knight and wizard who uses up spell slots and forgets the spell after casting it. similarly, what we would today call psionics is detailed significantly all over hindu holy books (from astral projections, to esp, to clairsentient abilities and so forth)
that's not to say that the east has divine rights on Psionics, because it doesn't. some people don't like to believe that all this para-science exists, but it does; even today. there are those who have powers to see things that others don't see. some have the ability to affect their physical world (bending spoons and forks, to setting fires, to moving things about randomly at the onset of puberty...). some have really high constitutions and unlock the powers of the mind to sublimate pain and torture (like yogis who bring their heart rate down to 30/min and stay in a para-conscious state while being set on fire).
people can fight, it's in the game. people can sneak, it's in the game. people can heal, and track, and tumble -- and it's all in the game. why deny humanity's greatest talents from being put side-by-side the other characters in the phb?
(whatever . . . i'm just stupid)