philcig wrote:So how come the optimized Thunderbird is called Thunderbird and is around the same size as the official one (around 33 mb) - not a complaint, just wonderin'?
What improvements might be noticeable with the optimized TB?
Umm... I'm not quite sure you're comparing Thunderbird with an official version. I just checked what size the official version was and it's 50 MB, not really the same size. As for the application name being the same, Mozilla do not want unofficial Firefox builds to be called Firefox but for Thunderbird the name can be the same.
The noticeable improvements would be the application will feel snappier when running, of course there are still speed bottlenecks that can't be speeded up due to physical restrictions and code. I've not run the official version of Thunderbird in a long time so not exactly sure how the differences feel now.