I have looked through the iPhone app and there is not settings to integrate with Contacts and I'm not ending up with the contacts being added. There's still something missing here.
It's cool and fun to take pictures of business cards and then have their data extracted. But it's pretty useless unless it integrates with your Address/Contact data. On a Mac you have a built-in place for the information. If Evernote doesn't want to get that platform specific, it could make the information available as a vCard file that could be opened by a wide variety of address/contact programs.