Does anyone, especially V6 beta testers, how AC intends to meet the meaningful use requirement to electronically exchange clinical info among providers?

I met with Washington State HIE yesterday, and they are implementing an adaptor that runs on the server. The requirement is for the EHR to put exported files in some agreed-to directory and pick up import files there. If files are XML, they can hopefully be parsed and matched automatically. Does AC6 already have this capability, or do we have to pay for an additional interface?

Also, I see in AC5.6 the link to state immunization registries. Is that another interface to buy?