Researchers from the School of Medicine at the University of California have shown that the more germs a child is exposed to, the better their immune system in later life. Their study found that keeping a child's skin too clean impaired the skin's ability to heal itself. From the article: "'These germs are actually good for us,' said Professor Richard Gallo, who led the research. Common bacterial species, known as staphylococci, which can cause inflammation when under the skin, are 'good bacteria' when on the surface, where they can reduce inflammation."

With modern console technology making it easy to develop and distribute small games, more and more companies are taking advantage of gamers' nostalgia to re-release decades-old hits, and to create entirely new titles in older styles. Gamasutra takes a look at what the retro game fad has become, and where it can go from here. What old games or series do you think would translate well onto today's consoles? "Many gamers who bought Mega Man 9 did so because of the game's inherent nostalgia, or because they never had a chance to enjoy the older games on the Nintendo Entertainment System when they were younger. Mega Man 9 is very much a product of its context. Its gameplay is fantastic, but it too is a product of the time period in which it reigned supreme. It suggests the question: can neo-retro games stand the test of time? Will games that mimic or lampoon the 8-bit era remain relevant and interesting to the masses long after its original audience has disappeared?"

Rob MacKenzie writes "I have to decide on a mobile phone to develop for. We're building a house with some automation built in, and we want the mobile phone to be able to control certain aspects of it, and retrieve information on what's going on in the house. Our choices are the usual suspects: Apple's IPhone, RIM's Blackberry, Nokia's line (Symbian), any Android phone we can get in Canada, J2ME generic app, or a Web-based UI we would interact with in the phone's browser. What would you choose if you had to go with one? Which exact model? We will be buying a few to develop for, so price is a bit of an issue."