Does anyone else have the same usage and standby time on their iPhone 3G? I have mine currently at 17 hours and 49 minutes, and my battery is about to die. I've hardly used the phone, possibly only sending 30 text messages and making a couple of 1 minute calls. I've also browsed the Internet for about 10 minutes. Wi-Fi is switched off, as is Push and Fetch is set to Manual. Location is also switched off. I've deleted both my mail accounts as well and the same thing is still occurring, and it's really beginning to annoy me because my battery is dying and I'm hardly using the iPhone.