None of note. I think there are a couple DDO's this near; never heard anything last year. Try http://www.coppercoins.com.
Billy Crawford posted a thread just recently with all the info on the newest 2011 DDO. He caught a lot of flak because some on here thought the variety was not significant. But it was also shown on the DieVarietyNews site.
Here's the Die Variety News link featuring the new Shield varieties in the July/August edition you can download (for free! ). http://dvnmagazine.com/
what do you mean that the reverse is a 2011. because 2010 and 2011 had the same back no error there...
SO these aren't errors I meane the reverses I had PIC are from this year! I know the 2010 are the same
It's tough to tell from the pics, but what are you looking at you think may be errors? Maybe we can help but not sure what you're looking at.