Hello, Im from india. I have a nice offer for acer iconia a500 from ebay india which ends in 11 hours.. I dont have much time to read reviews. 1. how is the battery life? Is it satisfactory. The sub 3500ma seems modest as per present stds. I would like to know the user experience. Did anybody feel the battery isnt good enough. 2. Does the usb recognise and allow transfer of files from a portable external hard disk which draws power from usb.. eg seagate 320gb. 3. Is there any way to power it via portable chargers that charge from battery?