The announcement of the Nintendo DS in 2004 was greeted with some scepticism for its two-screen gaming gimmickry, but 145m unit sales later it is the best-selling handheld console of all time.
Now Nintendo is launching its successor, the 3DS, with not just dual screens but dual images to add a 3D effect to games. This week’s Personal Technology column in the FT’s Business Life section is sceptical about the 3D element of the console but approving of several other new features on the device.

