I'm, working on it right now, but I have some other distractions today, so it may not be out until tomorrow or later. I've got pretty much everything but the dash options in right now (everything I plan to have in for the first release), but there is still a lot of work to do on the interface. The initial beta release may not be too polished.
BTW, the first release will probably be for the M8 with LBA48 already patched in. This shouldn't be a problem since the LBA48 versions are fine with < 137GB drives and everyone who has tested them give them the thumbs up.
Edit:
This is not an XBtool update, btw, but a separate app.