Remember how Lucozade, tired of its medicinal claims, relaunched itself as a rejuvenating sports elixir and carved itself a new market? Here's something similar.
Clever clogs Nicole Kidman (brains and beauty, yet all the women I work with hate her; yes that Chanel ad was pretty disgusting but she did put up with a high-maintenance cross-eyed midget with a Napoleon complex for ten years, so cut her some slack) fronts a battery-operated puzzle system designed to make train commuters feel they're not wasting their travel time.
I'm not knocking it - but brain training is not new. I've been doing it for years.
It's called reading a book.
(BTW, who the fuck is Dr Kawashima?)
See also: Brain mash