My new Treo 650 kept running out of battery power in less than a day, despite claimed standby time of several days. Yesterday I came up to my parents’ house in Mandeville, and realized that I had no charger with me, so I did something desperate: I turned off bluetooth and my email program on the Treo. Guess what? 24 hours later I still have around 80% battery life! I guess those features really are power-hungry.