Well, it's been a bit over 24 hours. On silent with 27 new email notifications (read 7), 5 SMS messages, sent 1 MMS picture, downloaded and installed Google Maps, fluxed with Opera MINI a few times, and made a 3 minute phone call...
I still have 52% battery left.
That's unbelievable.
Going to revert that Automatic_Data_Disconnect with the other cab, and see how battery is. But at this point, those arrows showing won't be bothering me much now.