This blog article talks about how to shorten the process to save battery life on the iPhone.
Guy Kawasaki claims to get 36 hours of time on this iPhone battery charge.
This gentleman lists the 15 steps to get optimal performance.
He proposed that an application be written to automatically make the switches.
See the original article here.
But there is also a followup article that doesn’t provide the application but does shorten the steps called iPhone Power Settings
This article presents a mocked up an always available means of switching among configurations. He lists the steps complete with screen shots.
See this article here.
