Today I migrated all my mail & calendar stuff from Thunderbird 2 to Thunderbird 3.0b3, thinking it would be safe to do so now, in its third beta incarnation. Boy was I wrong. Frequently I had to close the application in order to be able to access my mail inbox; an immobile message pane had blocked it. Bells & whistles appear to have been more or less randomly added. The underlying idea must have been that if you make it look like Firefox, it will automatically have Firefox quality. Sometimes they're indeed functional, sometimes not. Some items are tabbed, others that should have been are not. The original fresh 'brand new interface' enthousiasm has faded into confusion. I love Mozilla and its products but can't help feeling that something went really wrong here. In view of the sluggish and what appears to be increasingly uninspired development process of Thunderbird 3.0, I wonder if it wouldn't make sense to continue to build upon version 2's strength rather than carry on with the 3.0 chaos - if it ever gets to the stage of a usable product in the first place. Thoughts? Alternatives?