Martin Espinach, coffee machine and lunch mate, gave yesterday a very nice internal talk about how his previous project used bugzilla and Mylyn to help them plan, assign and track team tasks. Although they were initially excited about Mylyn's task-focused UI, none of the team members ended up using it; they did love Mylyn's ability to get notifications from bugzilla. It looked like a neat solution.
When his very detailed talk was almost done, he told us that, for their recently started new project, they are using IBM Rational Jazz. I felt like killing him, but I then I would have missed the chance to complain about his talk during every afternoon coffee in the next weeks.
And Jazz? So far, they are loving it. I'll have to ask him to demo it to our team.