I have installed the build of the 22nd, reset, and then reloaded from the backup without any problems. I did have to hard boot Slice (ie. Power off, unplug psu, then reconnect) to get the hard drive recognised.
Well done to all the Ninjas for the final completion of the Kickstarter orders. Speaking personally, I have very much enjoyed the journey, though you guys may feel differently!!
So what's the next gadget going to be??!!