I have had the .346 OS for two days and I have not seen any difference at all in the battery. I have a work cell phone also so I do not use the BB phone much between 8-5 but do use it alot for the web and e-mail.
I had the same problem with the .346 TMO upgrade. I ended up changing my os to .355 which is an os for a 8707. I used the GPRS folder from the .346 and everything else from the .355 and it seems to have increased my signal strength.
