Philips 650 with TV link
It doesn´t have a camera built-in (although you can attach a camera accessory to it), but it does have up to 1 month standby time, and up to 8.5 hours talk time. That's some serious lip-flapping – most phones get 4 or 5 hours, max.
Almost as interesting is its optional TV Link accessory which plugs into a TV set so you can view photos stored in the phone. The TV Slideshow is launched automatically, which would be right handy if the phone had a camera, or maybe if it was a camera that did the TV link. As it is this seems pretty backwards – why would you transfer photos from your camera to your phone for viewing?