LISTEN 
Catherine Bott on software that corrects out of tune singing but is also a creative tool.
Duration: 11 minutes
They allow you to pay with a swipe of your phone. Are mobile wallets the next big thing?
Winifred Robinson on how we all may soon be printing our own spare parts at home.
BBC © 2013 The BBC is not responsible for the content of external sites. Read more.
This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.
