Add Registration Type display formatter

It'd be nice to have an option to display the Registration Type only.

We have a View with multiple registration types per entity (in this case, a commerce product) with an Add to Cart form for each Registration row. The view is on a Product display node and displays all the products and registration types for each product. Showing the Registration Type let's the user select the appropriate type to add to the cart. (Member, non-member, early bird etc.)

It'd also be handy to show registration types on the site for anonymous users.

Questions

• What access checks would be required? The user shouldn't need access to create a registration.
• Should it provide an option to display the machine name instead of the label?