These sound great. I, too, have a plate full for the moment, but shall try one later in the year.
Puppy have a couple of Arm pups going, and, as I'm a Puupy addict, I'll go for a Deb or Ubuntu styled Arm Pup. Can't get into Slackware, it just doesn't appeal to me like Deb styled Pups do.
I need to get my Raspi out and up first though. I've been waiting on the new 9" Pi screen, HD & HDMI that's in development. Should be out in Feb (fingers X)
What's the use of a tiny, 5V PC if you need a 18", 220V screen to use it out & about ?
I have plans for my RasPi, but the CuBox sounds too good to miss