What's up all, I tried to use my ZTE 3G USB dongle connecting to my MBA 2010 13" since I need 3G network when I'm on the move. I get great battery life about 7~8 hours of light surfing via Wifi, but as soon as I stick that in, I get about 3 hours. Boy this 3G dongle is hungry on battery juice! I wonder if you have suggestion on other 3G dongle? This doesn't seems right, my brother's using netbook with extended battery (more or less same as the MBA in battery capacity) and he get about 6 hours. I know I can't compare with 2 entire different category of laptop with different OS, but the difference is so great that I wonder what went wrong. Hope to hear your opinion on this, or I might just apply for 3G package on top of my mobile phone monthly charges and tether via bluetooth. Since I don't use 3G often, maybe max 1 hour straight, I don't want to compromise any battery life just because of the 3G dongle - I'm using the MBA for other offline stuffs.