You can make power-enhanced attacks of opportunity.

Benefit: To use this feat, you must expend your psionic focus. When you make an attack of opportunity, you can use any power you know with a range of touch, if you have at least one hand free. Manifesting this power is an immediate action. You cannot use this feat with a touch power whose manifesting time is longer than 1 full-round action. Using this feat increases the power point cost of the power by 6. The power’s total cost cannot exceed your manifester level.

Normal: Attacks of opportunity can be made only with melee weapons.