Thanks for your report. For the second part of it: bug 54278 already states that one of them is for evolution as the groupware suite and the other one specifically for the mail component. Why alacarte shows two entries, I'm not sure.
** Changed in: evolution (Ubuntu) Assignee: (unassigned) => Ubuntu Desktop Bugs -- there are multiple menu entries for evolution in a new edgy install https://launchpad.net/bugs/57628 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs