Any comments?
Yes, quite a few, in fact.
In addition to the comments I have already added to this thread (which are mostly correcting people's misconceptions of various aspects of science), I will add the following.
The results of this study will need to be verified in future studies. It is very possible that some genes influence--not cause, but influence--the decision to be homosexual. It may very well be that certain genes are additive in their influence--for instance, gene A has 3% effect, gene B has 2% effect, and so on, so that different combinations of genes would contribute differentially to homosexuality. But genes are not the only factor. There is some evidence that epigenetics--DNA modifications that do not change the sequence of DNA, but affect the level of expression of the genes encoded in DNA--play a role in the eventual outcome of homosexuality. The epigenetic imprinting is largely a result of environmental factors, like exposure to noxious chemicals or infectious disease. Early childhood experiences probably also play a role.
I think that further research will show that homosexuality is a multi-component disease, much like autism and schizophrenia are proving to be. That is good--the more we know about it, the more we will be able to intervene early on to prevent or control the pathology.
I should also add that the counter to all of those who love to claim that homosexuality is perfectly natural is to point out that psychopathy, cleft lip, scoliosis, obsessive-compulsive disorder, meningitis, and so on, are also natural, and that we do not withhold treatment from people just because their diseases are natural.