André Fachat is working on a CPU card for the CBM/PET computers. His prototype now works on the 8296 model. The CPU card contains a 65816 processor which runs on 12.5 MHz. It also uses a Xilinx CPLD as logic glue and is has 1 MByte fast RAM and 512k Flash ROM. Take a look at André's web page for more information about this project.