As mike and other early orderers have been informed we are still not satisfied with the ECG-D4 performance and have shipped him and others ECG-DR4 units in place of their orders. We will keep working but know that the clock is ticking and recommend the solid ECG-DR4 for immediate use.
ECG-PPX specs, examples, and pricing have just been placed on our site. You can find them in the EthConGateway section of our product listings. They are solid and available so if you get down to your last minute configurations and find that you need some extra length to feed that isolated pixel string you can place orders for immediate shipment.
-Ed