I've decided to give this mobile miner a go but don't see why Electroneum have released it.
According to the info page on the miner it says..
"Mobile phones are not built to withstand or cope with the complex calculations required to perform actual crypto mining..."
So this means there will never be a 'real' mobile miner for Electroneum, which brings me back to my original question, why did Electronium produce what is, in effect, just an airdrop service.
To get market reach and adoption, non-techy people will be able to use this, try that with a proper PC mining app

Wasn't this possibility to mine ETN via your phone part of their marketing strategy? Please correct me if I am wrong but I thought that they put it that way.