I owned a Sony HC3 for about 12 hours - until I read about the HC7 and returned it. (I eventually decided on a HV20 - obviously)

One the the exciting things I liked about the Sony was the possibilities of using the Sony ECMHW1 bluetooth mic with it. While the quality of the mic is questionable the usablility for someone with a toddler was very attactive, much easier than using a lav with a transmitter.

Does anyone know of a comparable third party product? A wireless mic that is not a traditional corded lav.