UK mobile market service revenue grew by 2.4% in Q3, a level not seen since early 2011. However, this 0.6ppt improvement on the growth rate in Q2 was very disappointing in the context of an expected 2-3ppt revenue growth bolster from the annualisation of roaming tariff cuts. EE and O2 shared the top spot for growth, more than double the growth rate of H3G and far ahead of Vodafone which remains in negative territory and had only the slightest uptick this quarter. O2 is likely to be hit by its well-publicised network blackout in December, but experience from a similar problem back in 2012 suggests this will be modest and temporary, and it is otherwise performing well.