I was at the CTIA Wireless tradeshow and conference in Las Vegas today and I saw at the LG booth what the LG people said was one of the actual Ironman armor costumes from the movie. I took some photos with my crappy cell phone and here they are below.
It looked like the suit was worn since there were several cracked or broken parts near the edges where it would be articulated. I looked closely at the armor for about 10 minutes and it certainly looked like it could be worn. If someone else is going to the show, please take a better camera and get some better photos. You can see some missing chips in the Ironman3 photo closeup of the arm at the wrist joint. There were some others at the ankle just above the front top of the foot/boot. There were some other deep scratches and gouges too which they didn't bother to fix (they said it was left in to make it look more realistic ).
The eyes and chest were also lit up but you can't tell from the powerful spotlight showcasing the manequin and armor.