I've been working on a Dark Sun adaptation for Pathfinder, where I'd use the sorcerer AS the psion with six different "bloodlines".
So far, I've only done up one of them, but it is here, if you want to see it:
Clairsentience
A psion focusing on Clairsentience has an ability to gain information about an object, person, location or physical event through means other than the known human senses, a form of extra-sensory perception.
Class Skill: Perception.
Bonus Powers: true strike (2nd), see invisibility (4th), tongues (6th), mind's eye (8th), prying eyes (10th), find the path (12th), vision (14th), moment of prescience (16th), foresight (18th).
Bonus Feats: Alertness, Deadly Aim, Improved Initiative, Improved Lightning Reflexes, Lightning Reflexes, Skill Focus (Knowledge [any], Perception).
Discipline Training: Whenever you manifest a power of the divination discipline, increase the duration of the power by 50% (minimum 1 round). This bonus does not stack with the increase granted by the Extend Power feat.
Discipline Abilities: Seers (psions focusing on Clairsentience) gain the following abilities at the listed levels.
Forwarned (Sp): Starting at 1st level, you can always act in the surprise round even if you fail to make a Perception roll to notice a foe, but you are still considered flat-footed until you take an action. In addition, you receive a bonus on initiative checks equal to 1/2 your psion level (minimum +1). At 20th level, anytime you roll initiative, assume the roll resulted in a natural 20.
Diviner's Fortune (Sp): At 3rd level, you can activate this discipline ability to touch any creature as a standard action to give it an insight bonus on all of its attack rolls, skill checks, ability checks, and saving throws equal to 1/2 your psion level (minimum +1) for 1 round. You can use this ability a number of times per day equal to 3 + your Charisma
Scrying Adept (Su): At 9th level, you are always aware when you are being observed via magic or psionic powers, as if you had a permanent detect scrying. In addition, whenever you scry on a subject, treat the subject as one step more familiar to you. Very familiar subjects get a –10 penalty on their save to avoid your scrying attempts.
Blindsight (Ex): At 15th level, you gain blindsight out to 30 ft.
Greater Awareness (Ex): At 20th level, your blindsight reaches out to 300 ft., you become immune to effects that rely on your senses (can voluntarily be suppressed by the psion) and you may take 20 on all Perception checks.
