Start-up plans for a supersonic jet and other tech news

BBC Click's Lara Lewington looks at some of the best of the week's technology news stories, including:

  • Boom, a company backed by Sir Richard Branson, is developing a Concorde-like supersonic jet.

  • A cabin baggage ban on laptops and tablets on direct flights to the UK from Turkey, Lebanon, Jordan, Egypt, Tunisia and Saudi Arabia has been announced by the UK government.

  • An unstaffed convenience store has opened in Shanghai. Customers have to download an app to access the store and buy goods from it.

See more at Click's website and @BBCClick.