How to Fix the Mysterious iPhone Wifi Bug (and Avoid It Altogether)
by Brendan Hesse from Lifehacker on (#5KBJ7)

An unusual bug is currently breaking iPhones' wifi connections. Luckily, it's easy enough to avoid-and to fix if your phone becomes afflicted-but dang, is it weird. In short, for some reason, if your iPhone connects to a wifi network named %p%s%s%s%s%n," the device's wifi will cease to function. So don't do that.