A few hours back we told you about a new Lumia 920 update that had surfaced on the Nokia Care Suite, one which finally gave users a way to manage the storage space taken open by their “other” files. That’s just the tip of the iceberg, as it turns out, and since then we’ve gotten a bunch of new, interesting details on this software build. Looking for this 1308 firmware in Navifirm has revealed that this is apparently an in-testing beta version of the anticipated GDR2 Windows Phone 8 release, ...