Yes you are right, there was quite a bit of talk about that over the weekend on the boards. Musk's cousins run SCTY. I believe that TSLA shareholders may not all want him to give away his patent info either, but that's a discussion for another day.
What he did by bringing out this battery now, is to generate not only a thousand articles in solar and tech geek media, but also newspapers and periodicals all over the world speculating on the matching of (his) batteries to solar panels. Whether or not its a success for TESLA, its a milemarker for solar growth history. Now we need our astute and competent CEO to make sure we ride the wave forward, not get jumbled up in the flotsam and jetsam of the tsunami!
GLTA!