Since the source browser is already handling ctags, it would be nice to be able to examine a symbol (with a context menu, and likely a key shortcut) and go to the definition of that symbol (possibly multiple times if there are multiple definitions). Then being able to go "back" in the tags would also be very valuable.

For emacs users, this would be essentially the equivelant of M+. and M+* (with C+U to repeat as necessary).