jAMOS doesn't yet read original AMOS files, however if your source is compatible with the license I am using, I'll be happy to include it with your permission.
Update: Alpha 0.15 (February 25th 2012)
- Graphical drawing subsystem is now operational.
- Paste Bob implemented, including support for AMOS .abk files and two new examples.
- Plot implemented, with two new examples including a simple Mandelbrot generator.