first, let me congratulate about this greate post. as this kind of OEM modules lack about detailed information, even on NET.
regarding module specs, please note that "C" version also works with red (FIS) dot matrix display.
•5N0 035 730 C (r)sap, pbap, red and white dot matrix display, RNS support
I upgraded from 5N0 035 730 to 5N0 035 730 C without any problems (with RED FIS), so I could get the PBAP working on my Nexus S Droid.