What else will be new for Thunderbird 3?
A lot. One major driving force for change in Thunderbird 3 will be a better user experience, from easier configuration to faster search and other user interface improvements. The specific improvements haven’t been decided yet, as the user experience lead has just been hired, and we’ll figure all of these changes in concert with the community. We’re also going to be doing some housecleaning of the underlying code, to make it easier for third parties to extend it through add-ons.
