In this week's podcast we cover Microsoft's purchase of Skype, Google's launch of Chromebooks and Nokia's name-changing at Ovi.

There's also a lot of news about mobile money, with Visa making plans for the USA, Chiltern Railways introducing m-tickets and TNS reporting a 100% increase in UK mobile banking. In addition, we talk to Yossi Yarkoni of DigiMo about his company's new mobile payment platform.

Microsoft's puchase of Skype, Google's new Chrome OS computers and the end of the Ovi brand are all discussed this week. There's also plenty of talk about mobile payments, including an interview with DigiMo CEO Yossi Yarkoni.

Nokia says it'll start rebranding its 'Ovi' services as 'Nokia' from July, although the transition isn't expected to be completed worldwide until the end of next year.

No disruption to any of the services is expected.

Application store analyst company Distimo says Google's Android Market has overtaken the Apple App Store when it comes to free applications. It's calculated that Android currently has 134,342 free applications while the Apple App Store has 121,845 free applications for iPhones.

Distimo says the Android Market will become the world's largest app store (in terms of the number of applications) in around five months if all application stores maintain their current growth rate.

The four mobile application stores run by Apple, Google, Nokia and RIM will generate $3.91 billion (£2.35 billion) worldwide between them this year, an increase of 65.7% from 2010 according to IHS Screen Digest. Apple will be responsible for 75% of this market.

In 2008, the app market was worth just $207.33 million.