Connected cars and smart cities dominate the Mobile World Congress in Barcelona and 5G has been a buzzword, but new networks to power connected devices of the future are still some way from meaningful reality. The FT's Daniel Garrahan reports<br /><br />► Subscribe to FT.com here:http://bit.ly/2GakujT<br /><br />► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs<br /><br />For more video content from the Financial Times, visit http://www.FT.com/video<br /><br /><br />Twitter https://twitter.com/ftvideo<br />Facebook https://www.facebook.com/financialtimes