They're not just rendered 3D CAD models. I held one in my hands (minus the MKS-5000 which wasn't installed) and played around with it a little bit back in September 2010. Though it's certainly not any sort of great innovation, I do like it. I have no idea what the delay is.
http://www.bisque.com/sc/shops/store/MXDeposit.aspx Which is the order page that says in part: "The Paramount MX will begin shipping in the second quarter of 2011. Place your deposit today to own this incredible new German equatorial mount!" $4000.00 (I gather that is the deposit amount), quite a bit more than the usual and customary 10% sort of deposit there...
http://www.bisque.com/sc/shops/store/MXDeposit.asp Which is the order page that says in part: "The Paramount MX will begin shipping in the second quarter of 2011. Place your deposit today to own this incredible new German equatorial mount!" .
