This strikes me as another smooth PR move by Microsoft... not.

They've announced DX10.1- great right? The thing is that it will add new features that will not be supported by any current DX10 graphics cards. Way to further fracture the market.

To be clear, we're not talking about a DX10/9 style schism, but a curious move at this point nonetheless. Surely, this change was in the works for a long time now- why wasn't it included in the original DX10 spec? Now everyone who wants the bells and whistles, will yet again have to buy a new GPU.