Does anyone know of a good remote controled heat/AC climate control unit to replace the existing that can be controlled by the iPronto?

If so, does it require the NetX to go IR or can my IR to RF X10 lighting controler take care of this?

PS: I am familure with the X10 heat sensor that drives up the heat behind the unit when activated in order to turn up the AC thinking the room is hotter then it is. I would like something smarter/better then that!