symmetry is nice...but I hope that we're not going to become dogmatic and ossified..like a certain engulf-and-devour monopoly. Whether the calendar function is utilized within FF/TB or externally via SB, the functionality makes the suite comparable to Outlook/ie, which, for better or worse, is the benchmark. I try to switch away from ms stuff wherever possible, but the current state of SB/calendar imposes some hardships...and makes it tough for me to convince the users on my network (wife and kids) to abandon that other software. A calendar-specific forum (which would include the extensions + SB +++) would be welcome, in that it would make it easier to see what problems others are having- and more importantly- what solutions they've found.
long live the Mozilla Foundation!