Gabe Joselow of voanews.com writes:

Mobile phone subscribers in Kenya may wake up Monday morning to find their phones no longer work, as the nation's telecom companies enact a nation-wide switch-off of all counterfeit devices. Retailers and customers have mixed reactions to the plan, which could affect up to three million mobile phones.

Mark Bridge writes:

It was a week of dramatic contrasts in the mobile phone industry. We started with Everything Everywhere’s news that 4G service was coming to the UK this year – possibly with a new brand that’ll work alongside Orange and T-Mobile. Meanwhile Three UK seems to have its own plans that involve acquiring some excess 4G spectrum from Everything Everywhere. There was much muttering from Vodafone and O2, although whether this’ll manifest itself as legal action remains to be seen.

This week's edition of The Fonecast starts with news that Motorola Mobility is to lose around a fifth of its staff worldwide. There's also more reorganisation at Nokia, which is passing its Qt software business to Digia.

In addition we're talking about a new US partnership between Starbucks and Square, some good news for Research In Motion, a worrying report for Samsung and a major milestone for Shazam.

It's a good week for Yahoo! as it appoints Marissa Mayer - previously Google employee number 20 - to the role of CEO. However, things aren't as cheery at Research In Motion, which has been ordered to pay over $147 million in a patent case.

Meanwhile O2 UK is recovering from a network problem that left around a third of its customers disconnected for almost a day.

There's plenty of variety in The Fonecast this week. We start the podcast with news of MeeGo's resurrection by Finnish smartphone company Jolla before talking about a mobile network that’s giving away mobile data whenever its customers watch video advertisements.

There's also time to discuss Telefonica's recent deals, the rise of free WiFi availability, tablet-related legal action, malware in the Apple App Store and the truth behind a recent 'exploding mobile phone' story.