CNET’S Andrew Lim has discovered a rare Japanese survival guide for the iPhone 3G, which promises ‘six hot tips for making very best good use of your new 3G iPhone!!!’, which he has translated for our benefit.

My favourite – which you can see in closer detail if you click on the picture above – describes what you should do if a ‘hyperactive child rubbed mud on your beautiful 3G iPhone’s screen’. The guide recommends you should quickly pull ‘the hair wiping move’, and ‘teach child life lesson and do double great wipe same time’. But not for too long, or ‘infant may start big big crying’. Sensible advice….