Nokia E72 firmware update does not wipe your phone

Nokias E72 firmware v31.023 is already out for months, but I did not do an update because past experience tells me the update will wipe everything off the phone and reset everything to factory defaults. But on a fateful day, I decided to go with the trend of all iPhone users as the new iOS4 is released.Surprise, surprise. This latest update did not reset my phone. The firmware download of 130+MB