Leaving your wallet at home and going shopping with nothing more than your mobile phone is still a science-fiction vision of the future.

But it's getting much closer to reality, thanks to a UK-based company called Corethree. They're currently working with a number of public transport operators and have brought mobile tickets to a wide range of smartphones.

In this week's podcast we talk about two of the big announcements from Google I/O: a new version of Android and the retail launch of smartwatches powered by 'Android Wear'.

We also talk about Android-based smartphones from Nokia and Blackphone, network complaints in the UK, a reduction in European roaming charges and mobile ticketing.

We have something for everyone in this week's podcast. There's bad news as Samba Mobile closes, bad news as Apple and Samsung suffer product faults... and bad news as wearable devices are criticised for the poor user experience they offer.

Yet there's plenty of good news as well, including the launch of a new UK mobile payment service.

Samsung has put a 10x optical zoom lens on a smartphone, Google is acquiring navigation app Waze and the European Commission is getting ready to equip cars with an emergency call system.

We're also talking about a strike threat at O2, the risk of 'showrooming' to high-street retailers, the end of Symbian smartphones and plenty more as well.

In this week's podcast news report we're talking about quarterly results from BlackBerry and Three UK, we're discussing the latest network complaints data from Ofcom and we're contemplating the arrival of a new Facebook phone.

There's also time to discuss EE's UK 4G rollout, a dramatic move from T-Mobile USA and a train ticket app from O2.