Good Technology is currently planning on releasing two accessories for the SoundsGood.  The EnergyClip™ (shown) allows the user to listen to music outside the Visor.  It uses a single AA battery to provide the SoundsGood 10 hours of use outside the Visor (although I would never leave my Visor at home).  The EnergyClip is currently slated for a November release at $39.99.  A cassette adapter due this October for $21.00 will allow you to listen to the SoundsGood in your car.

Cases for the SoundsGood

Good news: because the SoundsGood is essentially a standard-size module (it sticks out 1.5 mm above the Visor and 1 mm behind the Visor), no case should have any problems with the SoundsGood.  This is the perfect MP3 module for users with beltclip cases.  The only case that has any problems is the Rhodiana Visor Case, which blocks the cover headphone jack because of the way it secures the Visor, so you will have to remove the Visor from the case to play music.

Conclusion

The SoundsGood by Good Technology has somehow managed to cram the equivalent of a CD player into a standard-size Springboard module that doesn't compromize much on features.  The 64 MB of memory can not be expanded, and the price is very high, but if you can afford it, the SoundsGood with its high transfer speed and long battery life will not leave you disappointed.