I see a double standard in the way you praise Facebook gaming while "dissing" open source games. First, you say that we should consider Facebook games as just as good as "real" games. On the other hand, you also say that "the state of open source games is not good." But for every popular Facebook game (e.g. Farmville, Mafia Wars), I can download dozens of FOSS games that are just as good or even better. So okay, maybe these FOSS games are just knockoffs of some commercial game. But aren't those Facebook games that you say are "fun to play" also knockoffs of, let's say, Sim City? Oh well, I'm logging off now and playing another round of Megaglest and Sauerbraten.

The technology's best application is probably in outer space, where we don't have to worry about wavelengths (since there's so much more sun out there). I can even envision its application as a possibly more compact plant substitute for the life support system of a long-duration space flight, say, to Mars.

When I skimmed the summary I thought it was gray goo time already. On closer reading, however, it appears that the molecules still need to be given a push to reassemble. The article doesn't answer the question of how much energy is needed to remove the surfactant.