Here is another link that I've found for the "JVX", which is apparently another concept out to replace the del Sol, it says it was actually displayed at the Chicago Auto Show. Looks kind of like a 350Z but not quite. It doesn't even look like a Honda to me.
http://www.geocities.com/MotorCity/Downs/1440/jvx.html
It's kind of cool to see all these concept cars and prototypes to replace the cars we drive now and where Honda will take them.