Before every new release the same thing happens. Either there is a mis-step with the retail version leaking, sometimes up to a week prior to the release, or there are hobby dealers selling on eBay before the date of release.
While I am aware that this is the way things go, it kind of puts a damper on the fun of getting to the shop on the release date to pick up some packs when you can just go on eBay and get ripped off by the people who got their cards early. By ripped off, I mean some of us lack patience and when we see a card of our player and it is relatively cheap we jump on it early.
There are over 900 items that come up on eBay when you search for 2011 Heritage. Take a look now, it may save you from opening packs and boxes.... or make you want to run to the hobby shop that much more on Wednesday.
P.S. No Hank Aaron on there as of now.