Got this from another site....we can add to this:
Known problems
Gallery still doesn't close properly (you can see it running if you have a task manager installed - this may be by design)
Camera white balance preview still does not work properly
While listening to music with 3D tones on, you get a missed call. Click Show > Dial - phone reboots. This does not happen with 3D Tones off (regression?)
Known fixes
Active Standby is now in bold font
Radio station is now displayed properly, without the extraline above it, in white color (previously it was black font)
Camera - overall feeling is that the camera works a bit faster (opening up, switching to and from Video Mode)
Gallery zooming is now slower (progress bar displayed on all zoom levels, on previous firmware progress bar was only displayed for the first step to 25%), but appears to be better quality - hence the reason for slowing down.
New Modem app in the Applications folder, it can connect via infrared (only). No help is included for the new app.
Phone Memory backup restore now works
3D Tones seem to work properly now
New ringtones added (some labeled 3D Effect #)
Voice dialling now works while listening to the radio
Music playback resumes after a call