Just a quick report of an issue I've had with this distro. It boots perfectly and gives me the Puppy desktop, but without keyboard or mouse.
My keyboard/mouse combo is a Logitech wireless desktop. It's fine with Debian and RiscOS on the Pi, so I don't think this is a hardware issue.
Unfortunately I didn't have a USB wired keyboard and mouse to hand, only PS/2. I'm trying to borrow a set from someone to see whether Puppy will work on my Pi with them.
So near and yet so far, to see a desktop and not be able to use it. But this is an alpha distro of an OSS OS, so I can hardly complain if my odd keyboard/mouse combo doesn't deliver
I make and sell radio kits for the Raspberry Pi and more.