BBC NEWS Business Nintendo profits on console craze: "Top selling games during the quarter included Brain Training for Adults and New Super Mario Bros, the latter of which has topped US games charts for the past two months.
Figures earlier this month showed that in 2005, Nintendo sold 2.6 million units of its handheld DS Lite and a further 1.3 million of the original DS.
Sony sold less than a million of its PlayStation portable.
Nintendo also made the best-selling game, Dr Kawashima's Brain Training: How Old Is Your Brain? "
On a related note, see Saving the World, One Video Game at a Time (NYT article).