When you say real progress, are you referring to the underlying technology itself, or something else?

With regards to the technology, I'm not sure if there's much more room for improving EEG itself, it seems like a solved problem (how do we measure electro-dermal (or brain) activity). However I'm not a neuroscientist, so I may be off base. Where I do see room for improvement is in systems that can automatically make sense of the signals we're reading. This requires gaining a better understanding of the brain, though.