I have found a way to enable the front camera of Omnia 2 to take photos by editing the registry.
Go to HKEY_CURRENT_USER\Software\Samsung\Camera
Create new Dword: SupportFrontCamera=1
where 1 is in decimal
You may use Resco Registry or any Registry Editor u have on your Omnia 2.
You will notice in the camera software there is an additional choice for self portrait photos, choosing this mode will enable you to take photo using the front camera.
Start camera
Go to "Shooting mode" (second left icon from the top)
Select "Self"
and you have your front camera (640 x 480)
Camera Does not Work after Tweak
If after applying the tweak and the camera isn't working anymore, all you have to do is change the HKCU/Software/Samsung/Camera "shooting mode" registry key to 0 after deleting the front camera registry tweak.
It works on WM 6.5 and Custom Roms for Omnia 2(i8000). This doesn't work on Verizon i920.
