The new version of this app brings several good features, so even yours truly decided to give it a go. Yes, I am an Outlook-slave and do not consider it to be a bad piece of software, especially when syncing it with my RIM CrackBerry.
However, we took a look into the new features of the app and we can say that message tagging and saving searches are really great add-ons to the software - while easier integration with Gmail and .Mac service will mark green light for all those light users out there.
You can check the app out using our complementary l'INQS. µ
L'INQs
Thuderbird 2.0 product page
What's new
Download for Winblows, Fruity OSX and
Linux