From what I've seen it is very similar to the ones for the 2004 Philadelphia and Denver which have a "e pluribus unum" pick up point, but I can't find a listing in either of my books " SIRW Pocket Change and Cherrypickers" nor on Wexlers, CC's, or VV...
Here are a few pics of the obverse and reverse as well as a side by side with another 2005-P in a similar die stage. I think I may have a new DDR here, or at least I hope I do. :) For reference, the side by side comparison posted has the normal coin on the left and the coin in question on the right.
What does ONE CENT look like on your coin? I was wondering if there was hub doubling there also. (Single squeeze dies affect different areas differently. There should be no doubling there, but the though passed through my ears) LOL