The first day of Apple’s Worldwide Developers Conference saw the company announce a number of new products.

The forthcoming iOS version 7 was revealed; this is now available in beta form for developers and will be provided as a free upgrade for consumers from the autumn.

We start this week's podcast by talking about Yahoo and Tumblr before moving on to discuss Google's recent developer conference.

There are product announcements from BlackBerry, HP and the former MeeGo developers at Jolla... and there's some interesting mobile app news as well.

Mark Bridge writes:

Last year, the Google I/O developer conference gave us plenty of product announcements: Google Glass, the Nexus 7 tablet, the Nexus Q device and the Jelly Bean version of Android. This year’s announcements were less dramatic: a streaming music service, a Google-friendlier Galaxy S4 and some game development tools. Coincidentally (or perhaps not) Apple announced its 50 billionth app download in the middle of the event.

Google has used its annual Google I/O developer conference to reveal a new streaming music subscription service called Google Play Music All Access.

At the moment it’s just available in the USA and will cost $9.99 per month, although early adopters receive a $2 discount. Customers can store up to 20,000 of their own songs and listen to them alongside millions of online tracks.

Mobile music discovery and interactive advertising business Shazam has appointed Rich Riley as its new Chief Executive Officer.

Former CEO Andrew Fisher, who led the company since 2005, has been appointed to the newly created position of Executive Chairman.