I saw the following message on http://www.navigation.com for the Z130BT, Z140BH, X930BT, X940BT only.
"PLEASE NOTE: This product is currently out of stock. The new 2017 product will be available for purchase on July 26th. Thank you!"
Nothing shown for the earlier models (Z110bt,Z120BT,X920BT). I have a feeling we are being abandoned by them.
Note: I posted the same message in the X series forum and requested that they post any discussion on this update here. No info yet on hacks to bypass the installation password or any other mods. The F series guys (which use the same firmware but EU maps) usually are ahead of us on finding hacks, so keep an eye over there.
Im going to buy the update and share like i did for the x series. Hopefully we can inject the same maps but just swap the .cif file like on the 2015 updates. PM me your contact info if you want to partner on this. I dont have an X or Z model anymore so I need to find a doner one, or one on ebay for cheap to read the files