I have a disk image of a small embedded device whose root file system I'd like to check-in to git as a means of distributing its GPL'd software. In that disk image are device files, which GIT studiously ignores. If symlinks are handled (contents being the path that the symlink points at), I don't see why device files can't be handled (contents being the type (char or block) and the major and minor device number). TAR, for example, handles this fine, except that using tar in git sort-of goes against the granularity of the objects being modified (like adding a bunch of extra "sd??" devices), such that you are modifying a whole tar ball instead of the individual (device) files.
Is there a reason not to handle device files other than "its not traditional"? That's the only reason given in google or the IRC channel.