I support concealed carry but the notion that it ought to be extended without the requirement of a license and training is to carry a sound principle too far. Let's compare, of all things, the recently passed voter ID bill. People have a constitutional right to vote. But that doesn't mean that the state may not place reasonable regulations on the manner in which that right is exercised to protect the rights of others.
To be sure, the restrictions normally placed on concealed carry may be more onerous than simply requiring a photo ID but the state interests justify them. It would be a different matter if the registration and training requirements were used to frustrate concealed carry rights but sufficient unto the day is the evil thereof.