Ever switched mobile phone operators and then realised you get Sweet Fanny Adams in the way of reception at home, despite the network insisting that they have good coverage there? A lot of what they map is based on theoretical coverage from various masts, rather than the actual coverage you can expect. Root Metrics do crowdsourced maps in the USA, and they’re starting in the UK. Download the app, and you can map around your area. Shame your network into sorting out duff coverage or similar. Obvious thing that the more people use it, the better the maps become.

Here’s what it currently looks like for T-Mobile UK around Weybridge.

Download the app/browse the site here.