"We want to raise awareness about this issue and shine a light on how important it is to keep the internet free and open to one and all, " said Raging Granny Gail Sredanovic.

BBC: Protesters denounce Google plan for 'two-tier internet'

The free Who Is It app customises this functionality further, so the light blinks in one of three colours for up to three different people.

BBC: Managing e-mail while on the road

And it leaves the courts free to review the current policy or any modified policy in light of its content and application.

CNN: High court rules for broadcasters on TV 'indecency'

Beyond that point, it should leave schools free to work out how to realise these aims in the light of their own circumstances.

BBC: Viewpoints: National curriculum in England

Since the Vivo Tab RT is a traditional tablet with an optional keyboard dock accessory (though it is currently included free of charge), the tablet itself is thin and light.

FORBES: First Impressions: ASUS Vivo Tab RT