the idling power consumption on the E6 are about same as the N8 which:

1. ~7mA if idling without any data connection
2. ~30mA if idling with data connection

so the only advantage here would be the 25% extra battery juice that make the different... so if your normal usage on N8 is 16 hours then the E6 will last u 20 hours with same usage.

The cool things I've found so far would be the keypad really make a different during typing as in full touch device u have tto force into the typing screen when typing but with E6 the screen still stay as it is when u doing typing... 

Garmin XT will distort if you choose 3D in Maps setting, but if u choose North Up it will can be use.

Most of (i can say all) apps will only in Landscape mode and the orientation rotation are NOT active at all in all the apps (even the music album listing)

The left side widget are something new as it will reserve at all HS and the bottom box reserved for phone/sms event notification.

Lots of S3 apps and widget not working on the E6 correctly, below some of it:

1. Nokia Reader, the widget will show as the apps itself, and when u open it the display only fit partial of the screen.
2. Accu. Weather, the widget will not fully fit into the widget frame, u will get a mini widget
3. Pocketlock, not working as it seem the E6 approx sensor I/O are different from N8
4. Garmin, the map view will distort if u view in 3D mode, the apps won't fully stretch into full screen
5. 3rd party apps icons are not all in round shape as of all the Anna default apps icons, not so nice with some apps icon in rectangle shape
6. Both AntSnes and gpsp emulator are working flawlessly, only the main gui distort a bit

so that's all the finding so far... 

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Added on July 16, 2011, 10:57 pmlots of the performance gain i only can say would be due to the Anna update... 1 thing very obvious are the Anna seem keep on refresh and clean up the RAM in background and will unload those apps that been put in background this make the 256MB RAM seem run smoother compare with current S^3... this make me really looking forward Anna on N8...

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Added on July 16, 2011, 11:19 pmdamn... really loved the navigation button as directional keypad in the emulator...

hahaha..

You want meh? E6 no gorilla glass, no amoled, no 4" screen, no loud loud speaker, not many apps/games due to weird res.

We only got Joikuspot PREMIUM, hehehe

Yep, I do believe the pseudo-push email is depleting the battery quite fast. Its happened before on my N8, and I believe its the same for E6.
Have you tried changing the retrieval frequency in the setting? In my N8, that is helping with my battery life. A lot.
That to be said, my E6 battery still going strong after a day worth of usage (Over Wifi). Only 1 tiny bar depleted for now. Maybe I didn't push it hard enough?

May I know how many emails are you using and what are the push frequency?

Are you on power saving mode? Any 3rd party battery optimization app that you run?

Your 1 day is 8working hours or full 24hours?
The problem with Symbian 3 is the data connection bug when some app like Whatsapp activates data connection, although inactive, still eat battery for lunch.
Either Nokia works out how to save power with always-on data or ban apps that hog the line.

Without Whatsapp, my E6 still left 80% at this moment. Im running hotmail and gmail check at 30minutes interval, Social, few minutes on the internet, few smses and calls. The only change I did was removing Whatsapp.

Fat32? How many GB is your thumb drive?

i set mine to auto scan in every 30mins...

There's way too many apps that weren't showned in OVI Store with this phone. And the prediction is very poor. Still, I kinda like browsing forum and replying with ease with the qwerty and high PPI.