Anyone using the Ultra Low Power audio DSP's in non audio applcations?

I'm referring to the Ultra Low Power DSP's customized for hearing aids and headsets, they are very small, very fast processors and use very little power (0.05mW/MIPS) and run on 1.2 volts, quite impressive

here is one

CoolFlux in another one, but they only license the cores

I'm just becoming familar with these type of processors, although they appear to have hardwired semi programmable filters (coprocessor), it also seems to have a generic DSP,RAM, A/D, D/A etc, but not much details on the site (no data sheets), is there something about these units that doesn't allow them to be used for general purpose DSP (assuming you can live with the A/D specs)? Or do they cost $200/each and that partially explains why hearing aids are $3000? :)