Hi,
according to Wikipedia (http://en.wikipedia.org/wiki/Dragon_NaturallySpeaking) DNS 9 and is predecessors should run under Linux using wine
In addition, certain versions of NaturallySpeaking (7,8,9) can be
run on Linux operating systems using the WINE open-source
implementation system. The implementation does not give full Windows
functionality, concentrating instead on text-recognition capability
using the included DragonPad.
They should run with crossover then, shouldn't they?