Microsoft has launched a wearable fitness-monitoring device. It’s called the Microsoft Band and is currently available in the USA for $199 (around £124).

The device can link via an iOS, Android or Windows Phone app to the new cloud-based Microsoft Health service.

We start this week's podcast with news that EE now has the largest 4G customer base in Europe, with 5.6 million UK connections.

There's also talk about a new DIY product for the Internet of Things, the disappearance of Nokia branded smartphones, quarterly results for Apple, increasing M2M connections and a growing market for smartwatches.

New information from mobile app analytics platform App Annie suggests that Brazil, Indonesia, Mexico, Turkey and India are the next growth markets for players in the mobile app industry to watch.

It says the mobile infrastructure and rate of development in these countries is creating significant new opportunities for app publishers.

Mark Bridge writes:

If I'm interviewing someone for a podcast, I'll generally use my Zoom H4N recorder and a separate microphone or two. But I don't need the same level of high-quality kit if I'm interviewing someone for a written interview. Why carry an expensive recording device when your mobile phone can do the same job?

Telefónica, the company behind O2 in the UK, has launched an ‘Internet of Things’ product that enables consumers to monitor and control the temperature, humidity and lighting in their home or office.

It’s the first in a range of modular solutions called Thinking Things, which will let users develop their own ‘smart’ M2M solutions without any programming knowledge or the need to install additional infrastructure.