Forgetful as I am, I neglected to mention another feature that has been added in 0.6.7, namely that you can see the individual hash rate of each GPU, as has been requested. It can display 8 GPUs at most (no more room on a single default-length terminal line). To switch to/from individual hash rate display press/type g and then Enter. Screenshot below of what it looks like, running on my 2-GPU machine: