When the NEX units were released Carplay was still an Apple rumor and Pioneer was publicly on the sidelines.
Sorry, I'm unsure what you're talking about? CarPlay & AVICSYNC are totally different things. I know CarPlay wasn't available, I was happy to wait for that, however AVICSYNC, which is an iPhone / Android app which links to the inbuilt nav software and allows things such as speed cameras, custom PIOs, fuel prices, weather data etc using your phones cell signal was advertised as a feature, not a "coming soon".
That app is still not available, and by all accounts the rumour is that's on the back burner until after CarPlay.
Until that app is out then the functionality that Pioneer advertised the unit with is missing.