Re: Sample size 1252
This is JV, the author of the paper.
Those things you are asking for is actually in the original paper, linked to in this Register article by Tom.
But I don't want to hash them out here (you can easily look at the paper), because the more central point is this: As this article's parting words go (which literally are just a quote from how the paper itself also ends): these findings are a curiosity, and not the end-all-or-be-all. It's nothing more than an interesting data point for potential series of future experiments.
You shouldn't treat the results here as anything more than "hmmm... interesting, we should do more and possibly bigger experiments like this...", because even the author (that's me) thinks exactly just that. No more, no less.