My original gut feeling was that the psionic rogues was overpowered when I glanced at it. But let's look closer at it.
Compared to a rogue, the pr loses:
2 skill points/level
3d6 sneak attack damage
Trap Sense
Continual (Uncanny) Dodge (only while focussed), and the ability is delayed.
The special abilities are delayed.
It gains:
Psionic ability from the start, based off Int
More class skills
Danger sense
More special ability choices.
The big thing for me is - if we allow the psionic rogue, doesn't it trample over the rogue's nche too much? Why take the first level in rogue when you can be a psionic rogue, and lose only a few skill points, which is close to a wash, since the pr will put many points into Intelligence anyway? Over the long run, I'm guessing it isn't overpowered, but it treads too close to the rogue for me to comfortly vote in favor of it.
No.