In a similar vein to the last "how can I downgrade my firmware?" post, a word of warning to Orange users of the ALS "Line 2" service:
It is NOT compatible with Music Edition Ver 3.0705.1.0.31
If you upgrade to ME, you will LOSE line 2 functionality.
With ME edition, holding down the # (hash) key switches the phone into the "silent" profile and back. Line 2 is NOT available in the Menus.
I have learned this from bitter experience - As yet, I have not figured out how to "downgrade" and with my luck, is the Orange version liukely to get to version 4...?