The tesla patent free offer is a trojan horse though. To use tesla's charging port you have to agree to not sue them over patents not just regarding charging but everything. You also don't get access to the supercharger network at any price. No sane manufacturer is going to agree to terms that one sided.

Once things settle down a bit I'm pretty confident each region will regulate a charging standard and eliminate the confusion, but it's still too early since vehicle to grid has hardly been touched outside of Japan and actively cooled cables are not part of any spec.