Like Bioshock! Dude, that was awesome!
I also like how Legacy of Kain: Defiance had telekinesis (TK bursts): you can lift someone up, and drop them or hurl them into stuff (like spikes!). In Bioshock, you pull an object toward you, hold, then release to propel the object at high velocity. Wham!
I also like TESIII's telekinesis, where you can reach objects that are normally out-of-reach. That's pretty useful.
So, what should telekinesis do?
- manipulate NPCs, creatures, and objects from a distance: lift, throw, impale, drop, push, pull
- add items to inventory from a distance (TESIII style)
- activate objects, such as levers, lights, buttons, traps from a distance
- open up another character's inventory (or open a container) and remove items - from a distance (where'd my underwear go?!)
- the longer an item is in a telekinetic "hold", the more damage it will do upon throwing it (like in Bioshock)
- removing a weapon from an enemy's grasp