Mike Hartnett @ Tawkn.com writes: "The Home v1.23.5 core client update is now available for download.
There's no way of telling what changes have been made due to Home currently being down for maintenance, but we'll be sure to update you once the Home servers are up and running again."
UPDATE: Installation of this update requires firmware 2.80 or higher. Also, it appears that not only do personal spaces now have their own save file, but the Home save files are no longer capable of being copied. This has more than likely been implemented in order to prevent some of the hacks that have surfaced in the Home community as of late.