The package contains the following notice in file dpic.c: Copyright 1995-2008 J. D. Aplevich. You may use or copy this file, but you may not sell it without permission. It is non-free because of the "you may not sell" clause. Other than this, no license information appears to be included. Maybe it was best if the package was bumped to dpic-2013.03.10 which is available on its homepage. According to README, the new version is free software, distributed under "BSD-2 CC-BY-3.0 GPL-2+".
For the time being, I've changed the ebuild to "free-noncomm". Leaving this bug open until the package is bumped.
bumped, thanks