DNS works just fine for IPNS content-hash-addresses too, and heck, you can do that right now. You just use that, the same way you'd use anything else - just say

DNS works just fine for IPNS content-hash-addresses too, and heck, you can do that right now. You just use that, the same way you'd use anything else - just say that dweb.foo.xyz is associated with a particular IPNS address (and www.foo.xyz can be the regular ol' web address).