In this week's podcast we find BlackBerry facing a legal battle, SMS spammers suffering a big fine and EE boosting its 4G data tariffs.

We're also talking about a new iPhone camera accessory from musician will.i.am, rich cross-network communications in Spain, free WiFi in Yorkshire and the year's most-popular mobile search terms.

Ofcom’s latest quarterly report into the customer service provided by landline, broadband, mobile phone and pay TV companies shows a significant change in the mobile sector.

Overall, thousands of consumers who’d contacted their provider between July and September 2012 were asked to rate the customer service they’d received. 67% of mobile phone users were satisfied with their network’s customer service, compared with 62% of fixed broadband users, 64% of landline customers and 69% of pay TV subscribers.

UK-based Nomad Digital, which specialises in providing WiFi services on buses and trains, has acquired the technology and support operations of Danish business CM Technology.

CMT, which is based in Copenhagen, provides passenger information systems on public transport and in transport hubs.

Mobile search is a hot topic again. Earlier this year we reported on mazoom.mobi, an internet search engine designed in the UK for smartphones, and now another mobile-optimised search provider has launched.

Kickvox claims to be the first of its kind, offering “a visual, integrated and categorised search experience that is designed exclusively for mobile devices”.

Fifteen years after moving in, Nokia has agreed to sell its head office building in the Finnish city of Espoo to property management company Exilion.

The building, which was designed by architect Pekka Helin, is being sold for 170 million Euro (£138 million). Nokia will then occupy the HQ building on a long-term lease.