Tech Life looks at ways to connect people. We examine the mobile phone usage gap. What is it ? Can it be narrowed ? And how do you shop online if you have no official address ? Our reporter in Brazil finds out. Also on Tech Life, the company saving billions of litres of drinking water around the world by detecting leaky pipes using clever tech. And we find out about the latest fast-paced video gaming technology for people who are blind or partially-sighted.