So the whole thing was/is operational at least.
The lockup of the touch-interface was foreseeable.
But the big question now is which on of the changes between sudoku_cklick.zip and the actual version is preventing proper operation with touch-devices?
As the code is fully operational with my PRS-505.
At first we should have a look on:
- the function export in the startup-code
- and the core-workaround in init()