June 1999 I'm now working on PPMZ version 2.
Some exciting things are in the works.
It compresses book1 and pic in about a minute each on my computer. This is at first quite an astounding result, because our computational complexity is orders of magnitude lower. However, we should perhaps not be surprised. This is why our performance on trans is so much better than ever. I now have a custom SEE module coupled to ppmdet.