Pioneer's web site says that this (CNDV-80MT) upgrade is "coming in August" so I ordered it for my N3. Unfortunately the order status says it's 60+ days out. I called customer service this morning and they have no idea, but the rep told me she expected it sometime in September.
The good news it that it's listed for $120 on the parts order, which is way better than the $250 they charge for the current upgrade.
Someone at Pioneer probably knows when this will be out but they don't talk to the people in Customer Service(!). I'll post a review when it finally comes in.
regards
~Marc