Now your phone's better at Sudoku than you

Well, if you thought Sudoku was pointless before, now it really is. It's now possible for even the most innumerate player to solve any puzzle in seconds - simply by asking Google Goggles.

Printable RFID tags could eliminate checkout queues

We could soon all be strolling past the checkout with a cartful of goods, thanks to the development of new, printable, nano-based RFID tags.