Rumor had it that the PS3 version of Portal was to have Move support. Valve has officially gone on record to say nope, it does NOT. Heck, according to the company line, it's already the best version of the game, so packing anything else into it would probably make the game disc rupture and your PS3 very unhappy. HOWEVER, you can still attempt to balance that retail copy on your Move wand and take a photo or record the act in progress (feel free to send Valve a pic or post the video on YouTube), thus "supporting" the PS3 version with your Move controller.
Oh - That gentle reminder? Go pre-order the game already.