Zyzz, this actually made me go and open my OG Jams, and I'll correct part of my statement. OG Jams still actually have more of a bump at the top of the toebox, however, the GMs have a similar flat sole than the curved 2009 pair.
Honestly, I hated the 2009's, so I sold mine, and I'll give the GM shops credit for "correcting" the sole shape, however, still I'm pointing out the inconsistencies of the GM shoe. In that, IF they are using the same mold to produce 2009 Space Jams, why aren't all of these technical aspects matching up? Yes, there are flaws between retail released pairs, but not shape-wise. Every 2009 retail pair that I've seen at least had the same curved sole! I've seen extra glue, dents to midsole, marks on patent leather, but the sole never changed.
The shape of their new Space Jams are more like the shape of the 2011 Concords, though they are technically marketed as the 2009 Space Jams. If they're using the 2011 Concord mold to sell Space Jams, are they still Authentic Space Jams? C'mon.