If you've been to a store that sells the Newton, you may have seen the rolling demo in the Newton display kiosk. The kiosk and the flow of the demo were designed by CKS Media. Chris Briggs did the artwork, and I wrote the software using NTK, the Newton Toolkit. The Newton programming environment is...shall we say...unique and quite challenging.
I have nothing but good things to say about CKS. They are fantastic people, and everything I've ever seen them do is both creative and fun.