You can now use the geoLocation parameter to specify the storage location for data when creating a namespace on the production network. This can help optimize performance by storing data where most or all of your users are located. By default, the geoLocation is set to US (United States). The available geoLocations on the production network also include EU (Europe) and JP (Japan). For more information see the Namespace section in the EdgeKV data model documentation.
At the moment you can only use the EdgeKV API to specify the geoLocation.