O2 says it's the first UK network to take advantage of Ofcom's new rules about redeploying old GSM frequencies. It's now reusing its 900MHz spectrum in London for 3G services, which is apparently delivering a 50% increase in capacity to the existing 2100MHz 3G network.

O2 has also deployed so-called 3G900 services in Leeds, Birmingham and Manchester.

In The Fonecast this week we discuss mobile termination rates, traffic management for mobile broadband, smart meters, protests, applications and crime-busting ringtones.

We also talk about the Japanese earthquake, which - although it's predominantly a human tragedy - also has economic consequences for the mobile industry.

BSkyB, BT, O2, TalkTalk, Three, Virgin Media and Vodafone have all committed to providing better and more easily comparable information to consumers about traffic management. It's a voluntary agreement that's been arranged by the Broadband Stakeholder Group.

The participating companies account for around 90% of all fixed-line broadband customers and 60% of all mobile broadband customers in the UK.

This week's edition of The Fonecast covers everything from the new iPad to O2's new content restrictions, from Android malware to Facebook messaging… and from mobile radio to Iain Graham rapping.

No, that's not a mistake (except in the artistic sense, perhaps). We really are talking about the same Iain Graham who hosts our podcasts.

In this week's podcast we discuss the iPad 2, data restrictions, mobile radio, mobile viruses and mobile tickets. In addition, Leslie Ferry of Broadsoft talks about IP communications... and Iain Graham raps. Yes, really.