I showed a range of FX Graph's capabilities to my department last week.  They were impressed.  They like the simplicity and the versatility.  Having used V2, this is a clear improvement.  Graphing is one of the most popular technological activities in the department.  We use things like Omnigraph, TI-Interactive and Geometer's Sketchpad and we finished by considering FX Graph as potentially being our main graphing software from next year.