Mark Bridge writes:

This week there was only one set of financial results that attracted the mainstream tech media. Apple reported the first drop in quarterly profit for several years as figures fell by 18% to around £6.1 billion. On the positive side, it made around £6.1 billion profit. It also announced dates for its developer conference in June and promised a new version of iOS.

Nokia is claiming a new ‘world first’ by putting a dedicated WhatsApp button on its forthcoming Asha 210 mobile phone.

WhatsApp is a cross-platform real-time messaging application that handles around 20 billion messages per day and is believed to have around 200 million active users worldwide.

There's a diverse collection of mobile-related news in this week's 30-minute podcast.

We start with the new Twitter music service before moving on to discuss quarterly results, patent licensing, wireless charging, advertising and mobile payments... before ending with a curious report about app-controlled underwear.

Nokia has won a court injunction in Amsterdam that prevents HTC from using a microphone made by STMicroelectronics.

The microphone, which is part of the flagship HTC One smartphone, has apparently been developed exclusively for Nokia.

Nokia’s interim report for the first quarter of 2013 showed shipments of its Lumia smartphones were up 27% on the previous quarter to 5.6 million units. It’s expecting even greater sequential growth of these Windows Phone smartphones in the next quarter.

Total smart device shipments were down 49% year-on-year to 6.1 million and other mobile phone volumes were down 21% year-on-year to 55.8 million units.