Globe-trotting presenters Jason Bradbury and Pollyanna Woodward return to the UK as they hit the streets of London in search of yet more must-have tech. They start off by racing down the Thames on a rigid inflatable boat and testing a range of camera phones, before hopping ashore and trying out folding bikes and scooters and a skateboard that can go down stairs. The pair then commandeer a bus to take some unwitting punters on a tour using nothing but budget tablet computers, and put on hi-tech trainers for a spot of parkour