Can we glean anything from the following info found here (
http://www.apple.com/iphone/specs.html). In particular, how would turning on call-forwarding affect battery life? Seems negligible to me. And what about Ask to Join Networks? It seems like that might decrease battery life when turned on, but it wouldn't seem like much would it? That's not the same as having WiFi turned off altogether, which seems like it would greatly increase battery life. Any thoughts?
Internet over WiFi: Testing conducted by Apple in May and June 2007 using preproduction iPhones and software. Internet over WiFi testing conducted using a closed network and dedicated web and mail server, simulating browsing to 20 popular URLs and checking mail once an hour. All settings were default except: Call Forwarding was turned on; the WiFi feature Ask to Join Networks and Auto-Brightness were turned off; WPA2 encryption was enabled. Battery life depends on the cellular network, location, signal strength, WiFi connectivity, feature configuration, usage, and many other factors. Battery tests are conducted using specific iPhone units; actual results may vary. Internet over EDGE: Testing conducted by Apple in May and June 2007 using preproduction iPhones and software. Internet over EDGE testing conducted over a 1900 MHz EDGE, using a dedicated web and mail server, simulating browsing to 20 popular URLs and checking mail once an hour. All settings were default except: Call Forwarding was turned on; the WiFi feature Ask to Join Networks and Auto-Brightness were turned off. Battery life depends on the cellular network, location, signal strength, EDGE connectivity, feature configuration, usage, and many other factors. Battery tests are conducted using specific iPhone units; actual results may vary.
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