Drobbins has suggested that it's time to incorporate some of the more stable/useful tools into portage proper. As a first step, I would suggest moving etc-update, lintool, and qpkg into the portage bin directory. To make these tools really useful, though, I think they need manpages (at least simple ones) _and_ they should be mentioned in some of our docs (presumably the Portage user's guide and, for lintool, the dev doc).
Added man pages.
We should change gentoolkit's description to state it's a place-holder for tools to go into portage.
That is explained on the package's home page. Furthermore, only pkgsearch has ever actually migrated from gentoolkit into Portage proper. If the Gentoolkit tools should migrate into Portage, they should use the Portage DB API instead of parsing the directories themselves. The DB API won't be ready for a few months, yet, so I'm closing this bug, as we want to open a separate bug for each tool that is eligible for inclusion later on.