GOOGLE NEXUS 7 7inch screen 1280x800 resolution 10 hour battery life 500,000 Android app (non optimised for tablets) From £159 ($199) Wifi HD front cameras KINDLE FIRE HD 7inch screen 12800x800 display 11 hour battery life 50,000 apps in Amazon appstore From £129 ($199) Wifi HD front facing camera The iPad Mini suggest a device measuring 7.85inches, with an aluminium back-cover similar to the most recent iPad. It is likely to sport a rear-facing camera and come with Apple's newest 'lightning' connector, a controversial re-design which made previous accessories and chargers obsolete without an adapter. If Apple follows its usual design styles, it is likely to come in white and black versions, with a choice of WiFi only, or a 3G option.