By Miriam Young

On a visit to Israel, UK Prime Minister David Cameron is being introduced today to Kano, the groundbreaking DIY computer and coding kit for all ages that raised $1.5 million on Kickstarter last November.

We've all been there: You have to make an important call, but you suddenly have poor cellphone signal. Israeli app Glove is designed to ensure you select the carrier that has the best coverage, wherever you are.