Coming Soon "The Curious Concert Pitch Conflict" By John Stuart Reid

This upcoming book gives a balanced view of 432 Hertz, 440 Hertz and 444 Hertz, from a scientific viewpoint. It will be available in their online store at CymaScope at a cost of $2.99. Look for this soon to be popular book some time in February!
CymaScope.com are also currently building a CymaPiano app for iPhone and iPad that makes visible the first 40 notes of the piano.

The app can be switched between 432 Hertz, 440 Hertz and 444 Hertz tuning options. In each case the harmonics and dynamics of the piano, as imaged on the CymaScope, are made visible, thus showing the differences in geometries with the three different tunings. The app will also be a lot 

of fun to use because the CymaPiano can be played both manually and by voice, so as you sing to the iPhone the piano will play the notes you are singing. The app also features a full demo piece by internationally renowned concert pianist, Daniel Levy, of piano music made visible for the first time.

For more info go to the link above. Look for a video of how the app will work soon :)