Quarterly results from EE show that 318,000 customers (2.3% of EE’s post-paid customer base) have signed up for the network’s 4G service in the first five months.

It says this means it’s on track to have more than one million 4G customers by the end of 2013.

A promotional deal with EE has seen 40 black cabs in London and 10 in Birmingham turned into mobile WiFi hotspots. Each taxi has been given its own 4G data connection via a MiFi wireless router.

The promotional 4GEE campaign will run for three months.

Telecoms regulator Ofcom has announced the winners of the UK’s 4G mobile spectrum auction, which has finally been completed after more than 50 rounds of bidding. It means that faster mobile broadband services will soon be offered to more people by more companies.

The UK’s major mobile networks - Everything Everywhere Ltd (EE), Hutchison 3G UK Ltd (Three UK), Telefónica UK Ltd (O2) and Vodafone Ltd - have all won radio spectrum.