Android 4.03 Battery life downgrade!

Read the tips from Samsung (they are in the settings). It says Wifi is consuming more than mobile data when data traffic  is low or none. On higher data usage it's the other way around.
Also, while on Wifi, mobile data is only stand-by, and you prob. need it to send MMS. So, little saving in switching it off when on Wifi. Wifi should be off when there are no acces points, because it makes the phone look for AP's, mostly in vain. And turning GPS off just prevents an app to turn it on. When not in use by an app, it's off anyway.

There's also, since Gingerbread, the built-in option to save energy. This will cause the phone to react slower in demanding apps, the more simple tasks are not affected.

What I would really appriciate, is the option to display white text on a black screen. Black on white consumes a great deal more.

Ok here is a little update:

Ablut a week ago I got the Android 4.0.4 update and everything whent back to like before updating to v. 4.0.3. Now battery time is between 20 and 40 houres on a full charge - just like good old days.

I don't know what they did wrong with the 4.0.3, but something was really wrong! I have not changed anything between the updates, I use the phone in the same way with same apps so only difference is the 4.0.4 update.

What i do see is that the phone goes into sleep much faster than before and stayes in deep sleep, witch was not the case before. I have been running different stats on the phone so I have quite a bit of data showing the major difference in battery time.

The irony is that my S3 is in the mail on it's way to me... Now I don't know if that was a good or a not so good move. There was a lot of impruvements in the 4.0.4, grafics is nicer and the screen also became more responsive (I also had a small problem in the outer left side on the screen after updating to 4.0.3, it simply was not that responsive - all fixed with the 4.0.4).