"Movement for Scottish Independence are proposing to retain the Monarchy."
I asume from this they want to become a member of the Commonwealth. Whether they want to retain the monarch as their head of state (and so become a "Commonwealth Realm") is, like many aspects of Mr Salmond's half-baked scheme, not clear. Either way I trust they've run their plans past the existing 53 members of the Commonwealth and, of course, Her Maj. (I imagine she'll be keen otherwise she might encounter difficulties when trying to visit her timeshare home in Balmoral).