I'm more concerned with the current alifornia State ban on open carry. After this ruling, that should be a no-brainer.
I'm only half done reading the Peruta decision. It does seem as if the historical analysis, using the same methodology as Heller, establishes that the core right is to carry defensive arms openly.
There does seem to be some "tradition" to disallowing the bearing of concealed arms. More recently, concealed carry has become the preferred means, as it doesn't frighten the easily intimidated. It will be a giant win for us if the core right of open carry is restored and the public prefers concealed carry. For the most part we will be able to have our cake and eat it too.
Obviously, if one is traveling and having to handle one's luggage at various points along a route of travel, it is much more practical to call on a concealed handgun rather than an openly carried long gun.