The International Commission for Non Ionising Radiation Protection (ICNIRP) has published a paper examining the Interphone results a year on and where the science is currenty at.  The abstract states:

Background: In the past 15 years, mobile phone use has evolved from an uncommon activity to one with over 4.6 billion subscriptions worldwide. There is, however, public concern about the possibility that mobile phones might cause cancer, especially brain tumours.

Objectives: To review the evidence on whether mobile phone use raises risk of the main types of brain tumour, glioma and meningioma, with a particular focus on the recent publication of the largest epidemiological study yet – the 13-country Interphone Study.

Discussion: Methodological deficits limit the conclusions that can be drawn from Interphone, but its results, along with those from other epidemiological, biological and animal studies, and brain tumour incidence trends, suggest that within about 10-15 years after first use of mobile phones there is unlikely to be a material increase in the risk of brain tumours in adults. Data for childhood tumours and for periods beyond 15 years are currently lacking.

Conclusions: Although there remains some uncertainty, the trend in the accumulating evidence is increasingly against the hypothesis that mobile phone use can cause brain tumours in adults.

Click here for the ICNIRP Paper

Read the UK National Health Choices (NHS) review of the ICNIRP paper here