Handheld Learning - learning with mobile and ubiquitous technologies

A link between long term mobile phone use and tumours was reported in several UK newspapers this week. See http://www.microwavenews.com/. Apparently,  the study of 4,000+ found no evidence of mobile phone use influencing the incidence of glioma, but if .... only those who had used a phone for more than 10 years are included (all 222 of them), there is a match at a level the report's authors describe as "of borderline statistical significance". Is this making sense to you? Anybody read the original study?