Not possible. The photos have to be handled by the Manager to get geotagging info. All that is collected with the photo is information about nearby Wifi access points - information that would be useless to Flickr or any other app. Currently only Skyhook has the database to turn that wifi info into a position, and that's why the Eye-Fi software has to manage the transfer. Eye-Fi has a contract with Skyhook to "translate" WPS into geolocation.