I have had my WiFi iPad since launch and initially I was getting 10+ hours of battery life. It seems recently i am getting much less, on the order of 7 to 8 hours of surfing, reading, games and video use. My usage pattern is essentially the same, and I have run the battery down all the way just in case of memory, but i still seem to be getting about 20 to 30% less battery life. Anyone (not Antonella, as iPad spelling chose), else? Ideas?