I saw this a few days ago, and found it interesting, yet not compelling at this point. As Danarhea pointed out already, there has not been an opportunity for the paper to be adequately scrutinized through the peer review process, and as it stands is just an interesting, yet unconfirmed discovery, and yet another example of the media in general picking up on a sensational tidbit and running to the presses with it.
I am curious to see how it turns out, but at this point it is in league with the organic evidence found in Allan Hills 84001, a Martian meteorite found in Antartica.
http://en.wikipedia.org/wiki/Allan_Hills_84001When the discovery was announced, many immediately conjectured that the fossils were the first true evidence of extraterrestrial life—making headlines around the world, and even prompting U.S. President Bill Clinton to make a formal televised announcement to mark the event.[
Several tests for organic material have been performed on the meteorite and amino acids and polycyclic aromatic hydrocarbons (PAH) have been found. The debate over whether the organic molecules in the meteorite are in fact of exobiologic origin or are due to abiotic processes on Mars or contamination from the contact with Antarctic ice on Earth is still ongoing