Official firmware, unofficially

Read from the forums 2 days back that a new version (V21) is released for my phone model. As it is only released for certain regions to date, and me being a firmware junkie, I managed to find a way to flash into my 5800.

Initial impressions upon few days of use:
- overall navigation of User Interface is snappier
- "breathing" light is newly implemented. The menu key lighting sequence which was used for message notifications in v20 is now a constant feature which tells the user the phone is on when the screen is in power saving mode.
- message notification light can now be customised for Sms, Emails and Missed Calls in the form of double-blinking menu key light. You can also set the length of time for the notification
- web browsing has improved speed. Rendering of web pages are now much faster.
- touchscreen is more responsive now
- phone RAM memory management seems to have improved.
- font type had been changed, bigger now (I still prefer smaller fonts though)
- font size setting had been changed. The small setting is the normal font setting in V20.

And the bugs that are either new or not fixed:
- the random screen discoloring still occurs
- the camera auto flash still don't work after customising the camera settings
- headset remote media control keys still don't work when Music Player is not in the foreground, something I missed from N95

So here's a quick review of the new V21 for 5800XM based on my usage.