12:25 UK time, Tuesday, 15 April 2014
Rory Cellan-Jones speaks to Martin Varsavsky - the founder of social wi-fi network Fon.
In an open letter to Google's Eric Schmidt the boss of German publishing firm Axel Springer says it is afraid of the search giant.
A Japanese researcher creates glasses that show computer-generated eyes that express emotions so that the wearer does not need to bother.
A 19-year-old Canadian citizen is charged with hacking into the Canada Revenue Agency's website, becoming the first arrest in relation to the Heartbleed security breach.
Shares in Google fall 5% despite reporting first-quarter profit of $3.45bn in response to worries over future income from advertising.
The tech making e-commerce easier for small firms
Remote presence bots help doctors visit hospital wards
Report shows how foreign fighters in Syria are using social media
The BBC's attempt to create 3D sound recordings
Rory and the Tech Tent team on Heartbleed and other news
Samsung's latest smartphone swings in
Meet the woman teaching photo tagging to people in rural Uganda
From iTunes to Spotify, 10 years of 'legitimate' music services Newsbeat
Best known for its old-world charm, this metropolis is developing a new art scene