Tips sulla batteria di iPhone del grande Guy Kawasaky

Some of my buddies have expressed astonishment that I get approximately thirty-six hours of standby with my iPhone, so I'm sharing my settings. Note: this is my second 3G iPhone--I returned the first one because I was getting only five hours of standby time....

http://blog.guykawasaki.com/2008/08/the-art-of-ipho.html