Well, I've seen lots of talk about this and "banning" the battle flag. From what I have read, half of this is a business decision. One made by many businesses in response to Wal-Mart's decision, but simply that. I'm not opposed to businesses deciding to sell or not sell something, it's their choice and there were already several stores that did not sell items with the battle flag on them, I believe Target was one. While I do find it disappointing that this extended to Amazon and Ebay (where, ironically enough, Nazi related items can still be bought and sold), it's still a private decision made by these companies. And as far as the Apple store is concerned, I don't know why anybody would buy a game there.
The second half is the flying of the Confederate flag on state grounds and the issuance of it on state-sponsored items, the best example being Sons of Confederate Veterans license plates. This debate has actually been going on for a while, and again, I believe this should be decided on a state-by-state basis as to what to do with the flags that fly on state grounds and how to approach memorials. SoCV plates, however, are another subject, one that the Supreme Court decided on in the past year, I believe. After a series of back-and-forth decisions by a variety of appeals courts arguing what essentially boils down to free speech vs state property and what overrides what, state property won. I know this was a particularly touchy subject in my home state of Maryland because they were under court order to provide them, since MD has a SoCV branch. What will happen to the plates now that the designs can be ordered changed by the states that issue them? Who knows. Maybe they'll switch the battle flag with some other flag, like the Bonnie Blue, or maybe they'll come up with a crest of sorts like the SoUV's plates.
Personally, I believe that the flag and items like it should still be up for sale. And, let's be honest, they still are. Doing a quick google search for "confederate flag for sale", I found a couple sites right at they top who offered it. Now, when I tried to find memorabilia, like coffee mugs for example, the search became a little harder because of all the entries on places like cafepress and zazzle that no longer exist, but you can still get to the Museum of the Confederacy's online store (which is a rather nice museum, visited it last year) and plenty of other smaller internet shops specializing in Civil War and Americana items.
In the end, what really matters is, what's going to happen in a month from now? Three? Six? This will surely die down and people will forget like they always do with these shootings, but what will happen to battle flag merchandise, especially on places like Amazon and Ebay? Will they keep up the fight to keep these items out of the store, or will they quietly ignore these items and allow them to slip back onto the storefront once this all blows over? That's the real question and it will ultimately be the one that is the deciding factor in where you buy this stuff.
