The next stage is to develop a cap that does not have to be attached directly to the scalp. This should make the device easier to use and cause less skin irritation for the wearer.
Adding PCE console specific layer on top of that, makes for an interesting challenge (no, not a reference to Ys II).
I love that new scientist site, between that and Snopes I spend a good 3-4 hours just reading random crap once every couple of months or so.