This entire episode is ridiculous and says more about "us" and the "media" than it does about either Brewer or President Obama, both of whom this episode says practically nothing about.
First of all, "black radio" is hardly a barometer for the national mood. Secondly, there is no doubt in my mind that any governor who showed some level of discernible anger toward President Bush would receive criticism comparable to that being leveled against Brewer right now. From different people of course, but the criticism would be there and there certainly would have been people rallying behind Bush to some extent.
Also, we really don't know anything about what was said or anything about the history between the two. From what I can gather, the only person who was there and actually heard the exchange and has said anything about it was Brewer, so naturally her account is at least a little suspect and hardly the basis upon which to base our opinions of what happened. She could have pointed her finger at him for any reason. And that's all this really is; a finger-pointing and both people feeling perhaps a little bit snubbed for who-knows-what reason.
This only becomes a race issue for people who want to make it a race issue. The reality is that if you were so inclined to, you could turn any issue, disagreement, public flap, etc. between a white and a black into a race issue, especially when one person is so much more highly-ranked within an organization or other such entity than another. The same thing could be said about the sexes. To me, those who want to turn it into a race issue when, in this instance, there is practically no reason to suspect that race played any part in the issue lose all credibility and relevancy with me when they play that card.