Full disclosure and humble pie time.
Thanks to a very kind forum member who actually works in chip fabrication and has contacted me with some crucial information, we have to withdraw this. We've been told some wrong information, and by more than one source.
I would just delete this post immediately but that would be dishonest obfuscation. Not what we're about.
The app will still do plenty of other distributed computing tasks on PCs (as it does now) and on mobiles, but mining BTC on mobiles certainly won't be happening in 2014 and possibly not at all.
Apologies for the cock up. It was an honest mistake and we were acting in good faith. Hopefully this public retraction demonstrates that much, at least. I've amended the OP to say the same thing.
Cheers,
Mark
PS. As it's kind of pointless now, I've asked the moderator to delete the thread. But I wanted to set the record straight and apologise first. Sorry guys.