I refuse to go get a new SIM card to "increase the battery power" on my phone. Silly. I have had mine for a week and I cant get more than 6-7 hours and I have turned off wifi, bluetooth, email checking etc. I mean, the point of this phone is to have all that. I shouldnt have to turn it all off to conserve battery then turn it all on for a quick second and then turn it off to conserve battery...silly. I am putting mine on Craigslist and going back to my E71. If they are going to produce a mobile computer then add a battery to support it. I do not think an OTA update is going to suddenly make it better...