I, for one, welcome our new double-screened overlords. The fact is this: the DS has sold over 10 million units in the United Kingdom. That means one of every six of the Queen’s subjects owns Nintendo’s portable system. The DS’ success can largely be attributed to its collection of games focused on sharpening the mind. Titles like Dr. Kawashima’s Brain Training have sold well as of late and have helped expand the system’s appeal beyond those core players focused on more traditional gaming experiences. Be it those looking to play a few games on the go or anyone hoping to boost their IQ by a few points, it’s quite clear from the numbers that the UK is going UKrazy for the DS.