Aparently GeoHot was able to solve the problem of WiFi that occurs on many iPhone after updating the firmware to version 3.1.x.

Just now in fact, via Twitter, has left a message where he asks ironic and funny if Apple will give a sort of reward in exchange for a fix to this problem that invades the official forum for months. Because it is a problem that occurs even some Italian customers, we will continue to keep you updated!