Perhaps it could be used to implement some IO glue for people wanting to do crazy things, like attach legacy Amiga hardware.
That was my thinking too, but legacy Amiga hardware all sits on either a ZorroII bus (which little more than the 68000 bus) or ZorroIII... Both of which can built using a cheap FPGA. I think Dave Haynie said Buster was just a CPLD...
The XMOS chips might be quite useful in the telecoms industry... Which I note still use PPCs too... So this board might have a use there!