I'm just putting this out as a beacon to attract information. When the 2013 Mac Pro was announced I drooled, then I cried, upon discovering that from a graphics standpoint it is more limited than its predecessor. It cannot be of any use to me unless it supports NVIDIA. So, it's been a while and I just want to know if there are any credible rumors circulating about the next hardware update (whenever that may be) including support for non-AMD GPUs. Thanks in advance.