Thunderbird has many fans. and yet what is a solid and mostly reliable program hasn’t grown at anywhere near to the rate Firefox has. Hopefully the change will see a renewed focus on brining new functionality to Thunderbird, changes that could well position Thunderbird as a fully featured future Outlook alternative.
well, for one thing they could invest in it. i am running thunderbird 3 nightlies, and the pace of change seems to be glacial.