The maximum charge for mobile phone calls in Europe has fallen again, thanks to the European Commission's 2009 ruling on mobile phone charges.

Consumers on any standard UK tariff will now receive the so-called 'Eurotariff' of no more than 35 Euro cents per minute for calls made (38p incl. VAT) and 11 cents (12p incl. VAT) per minute for calls received while abroad in the EU.

Nielsen has been looking through recent research to compare the ways US teenagers use their mobile phones.

It says today's children watch more mobile video than any other group, with 12 to 17-year-olds enjoying over 7 hours of mobile video a month - compared to 4 hours 20 minutes for the general population.

The volume of mobile voice and data traffic in the average Western European country will grow by 67 times - from 186 Terabytes per day to 12,540 TB daily - between 2010 and 2020, according to a new report from the UMTS Forum.

Worldwide total traffic on mobile networks is expected to increase 33-fold to an annual total of 127 Exabytes in 2020.

Chinese telecoms manufacturer Huawei Technologies has been awarded a four-year contract to upgrade the Orange and T-Mobile networks operated by Everything Everywhere.

The work will improve reception, expand HD voice calling and will also prepare for a move to 4G LTE technology.

Mark Bridge writes:

When I arrived at Mobile World Congress earlier this month, I said I wanted to see a bit of everything. Ground-breaking devices, advanced technology, network innovation... and some original applications as well. What I didn't realise was that I could find all of those in one place, on the SK Telecom stand.