Soulskill from the might-as-well-put-it-to-good-use dept.
judgecorp writes "Fears that mobile phones cause cancer have never had strong backing from scientific research, but Israeli startup Tawkon is using those fears for an interesting business model. Its free app (banned from Apple's App Store, but on Android, BlackBerry and unlocked iPhones) tracks how much radiation your phone is emitting. This lets concerned users hold their phones away from their heads or whatever — but it also gives Tawkon a useful map of cellphone coverage around the world, which is the real asset it is monetizing — for the benefit of everyone, it says."
Quantum Mechanics is a lovely introduction to Hilbert Spaces!
-- Overheard at last year's Archimedeans' Garden Party