The current settings are hidden away, like they aren't supposed to be messed with, yet I am seeing recommendations to disable Blend Text Colors Using Gamma: http://bjango.com/articles/photoshopc...
I was tempted to label this as a "Problem" rather than an "Idea."
There are simple workarounds for this issue, but you can't expect users to know what is happening in the first place, especially with how well hidden the gamma blending preferences are.