(Sorry if this is the wrong place for this) net-fs/netatalk-1.5 is masked because it is untested. I needed it for my network so I unmasked it and gave it a go. On the two machines I have it running on it seems to work fine. File and Print sharing both work great.
*** Bug 3007 has been marked as a duplicate of this bug. ***
much better to mail the maintainer of the ebuild (Check the head of the build or the ChangeLog if there is one), when in doubt mail gentoo-dev and get a thread going on it