A Pause from the Falling Sky
"Species barrier" is only relevent to sexual reproduction. "Species" is quite irrelevent when we are talking about segments of DNA and RNA. Genetic material pass between different species all the time. Every time you get a cold or any other viral infection, that's when DNA (or RNA) of a virus inject itself into your cell, and use your cell metabolism to make more copies of itself. Likewise, segments of DNA pass between species all the time; that's often where drug-resistence comes from, and probably account for the majority of mutations that drive evolution. It can be argued that Mitochondria is a different "species" altogether, with its own DNA, cohabitating with our own cellular DNA but not mixing at all. It can also be argued that DNA contained in sperms are virus-like, and taking advantage of the metabolic system we call "egg" (which itself uses "woman" to make more copies of itself).
The paranoia about patents is even more absurd. Patents expire after 20 years, and the knowledge contained therein becomes public domain. Genomic map of mankind is natural knowledge, therefore not patentable at all. Designer DNA that can make kids taller, more handsome, for example, however, are probably patentable. So pay up if you think making your kid taller or more handsome is worth the money (just like buying them good food or good clothing; nobody is advocating banning high heels even if they are potentially detrimental to health); otherwise, wait for 20 years for the patent to expire, and you can buy the generics.