More refined is what I see from see, feel, touch, operating, and reading the manual. Have you done as much or are you just reporting on what you have heard on the mail lists.
The ID880 is DEFINITELY a radio that is more refined for D-STAR. Better display of received callsign Better DPRS support More memory channels New Repeater List memories RX-CS key is one touch These are not debatable points. The ID880 Repeater list memories are not the same as the standard memories. So you get all of the functionality of the 800 plus the new functionality. Ed WA4YIH
