Thanks every one for all help.

I will use this post to remember what I did from flashing to improve N9 with various mod affecting Nokia Maps/Drive or UI. Maybe it might help someone else as well, even if this phone is less and less used.

First of all, I saved what I wanted to save like contacts, images and music (AND I ****ING FORGOT TO SAVE NOTES once again). Then I follow this thread doing a "Comprehensive reset" using WinFlasher_3.12.1.exe on Windows 7 64bit.

I downloaded this main.bin (New Zealand) and this emmc.bin (rest of world).

Flashing has been fast and smooth. I have been so scared when my phone has restarted and asked me which was the security password. I type which I tried to set a long time ago and it worked. Such a relief !

I activate Developer Mode with Utilities (wget/nano/X11-utils).

I started by removing any app I don't want such as games, register my different accounts and hiding few icons doing:

1. Installed Filebox 'cause I'm not much of a terminal guy.
2. Installed Aegis-install hack package
3. Installed Harmattan Trusted repository. Certified source.
4. Installed Warehouse, it's an applicaion store.
5. Modified Nokia Maps/Drive to improve it. Command lines have faulty URLs. I found patch_2.6-2+maemo7+0m6_armel.deb here.
6. Installation of Power menu QML: "#apt-get install power-menu-qml". Timing I set: 100/150/250.
7. Installed of Unrestricted System UI + Unrestricted Settings. Make sure to create these folders as user:
   
   Code:

   $ mkdir -p /home/user/.status-menu
   $ cp -v /usr/share/sysuid/items-order.conf /home/user/.status-menu/
   $ cp -v /usr/share/sysuid/top-order.conf /home/user/.status-menu/
   $ cp -v /usr/share/sysuid/pannable-order.conf /home/user/.status-menu/

8. Installed system-ui-widgets & system-ui-tools & system-ui-brightness-qml & system-ui-unrestricted-server.
9. Installed the best Whatsapp client nowadays: Whatsup. Register your Whatsapp account number following these steps (3rd message) (since Whatsup v1.0 it should be good anyway).
10. My earpiece is really low, so I apply thoses modifications by mr666acdc & mautz
11. I like to have my own Top-Site in grob internet browser.
12. Changing default SMS message for rejecting calls.
13. Installed mt-toggle and some toggle such as flashlight-toggle, bluetooth-toggle, nfc-toggle, flightmode-toggle and orientation-lock-toggle through the Warehouse application. Here is solution to remove the animation.
14. Installed N9 Button Monitor through Warehouse application. It makes it possible to configure new actions from N9 buttons.
    Here is my /home/user/.config/n9-button-monitor.ini (default file) configuration for these new possibilities:
    
    Code:

    torchAutoShutOffTimeMs=300000
    longClickDelayMs=250
    doubleClickDelayMs=100
    trebleClickDelayMs=200
    cameraDisabled=0
    dbusPatternDelayMs=800
    
    ###Toggle Flash Light from Screensaver with long press on Volume+ button
    action=torchToggle,volumeUp,longClickStart,screenLocked
    ### Hold Volume+ in camera app to focus, release to take a picture
    action=clickCameraFocus,volumeUp,longClickStart,cameraAppFocused
    action=clickCameraSnap,volumeUp,longClickStop,cameraAppFocused
    ### Tap Volume+ in camera app to take a picture
    action=clickCameraSnap,volumeUp,singleClick,cameraAppFocused

To be edited... if I find new tricks.