I would certainly be interested in the reviews of this in the field - 75 degree FOV throughout the zoom and claims to not have to focus the zoom when zooming in and out is attractive (and for terrestial and astro viewing). Mind you not much change from $625 AUD shipped.
I like my Zeiss Diascope a lot for its range 6.7mm - 25.1mm and the contrast and sharpness. For me the I like the ability to go towards the 20 - 25mm range but like the idea of the 75 degree FOV in the APM (and also the fact you do not need adapters for it like you do with spotting scope eyepieces!). The eye relief of 16 - 20mm sounds good too. Feel like I am talking myself into buying one!
If any one purchases one would be great to have a field test review from you