Share Radio's tech supremo, Steve Caplin, explains why Abba are having to build a venue for a London concert featuring them as they were 40 years ago. Also the finalists of the James Dyson awards including a Braille ebook, a touchscreen games table, fast food delivered in the air, Apple easing its take in the App Store, a wireless charging room and smart bike pedal lights which mean you never need worry about being out without lights if it gets dark unexpectedly.
