I guess he means we have the drive encryption key.
just nobody made anything useful with it yet.
But that's not the request here, Hama is wondering if a FAT32 HDD will be possible now that we have IOSU hack. You know, like what people expected for 1 year and thought IOSU made things magical on day one
To answer you : This is in progress !
Dimok added an easy method to access files, and it could lead to libFAT support. (on homebrew only ! not on system menu, it will still ask to format if not UStealth'd).
Then
@Yardape8000 mentionned he will (try?) work on it in near coming days.
You will have to use CFW with IOSU node feature first before launching loadiine though, but that's not an issue I guess.
Maybe what Yardape will do is not FAT32 HDD support, but direct game loading from WiiU HDD launched from loadiine?
any progress is a progress, just wait and it might be a thing