The creators of Yellow play down fears that the app puts children at risk of predators, despite a warning from the NSPCC.
The bank cards, which are operated by a battery and a microchip, feature a digital read out which renews every 20 minutes.
Facebook and Virgin Money executives are among the private sector team of advisers with 10 of the 16 roles going to businesswomen.
Japan is creating the world's fastest supercomputer to emulate the human brain's neural pathways.