As predicted (again)
I am guaranteeing that Apple and Google will be wetting their collective knickers at this news (if indeed they haven't bunged a few quid into the research to start with).
Not a massive power source. But as a few commentards have noted, it could be used to power up a capacitor to act as a reserve/impulse battery ?
Of course, for the tinfoil hatters, for the 5-Eyes there is now the tantalising possibility of a lifetime tracking device in your mobe.
I love nuclear power. I really do. Especially as it scares people who can't be bothered to learn teh physics of it.