Aleks Krotoski presents this week's programme from Nokia World – the Finnish mobile communication giant's world conference and developer summit in London's Docklands.
Charles Arthur catches up with technology analyst Michael Gartenberg to find out what he makes of this week's movements at the top of Nokia that have seen its chairman and former chief executive Jorma Ollia, its current chief executive Olli-Pekka Kallasvuo, and the head of mobile Anssi Vanjoki announce their departures from the company.
They also discuss the latest changes in Apple's app store rules, and the launch of Google Instant search.
Also in the programme, Aleks speaks to game developer Jane McGonigal from the Institute of the Future and hears about how she intends to bring other developers together with a social network – Gameful – to create games for good.
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