Just updated my wife's N73 ME to version 4.08126.96.36.199.
Here are the improvements:
1. Mobile TV icon is present at the applications folder, can't use it coz i don't have SU-33W receiver
2. Navigation with the menu icons is so quick
3. Start-up time of opening the camera is quicker this time, still can't match N82 but almost
4. Focusing speed improved