They also eliminated damn near every port on the device. All it has is Thunderbolt 3, aka USB-C (2 ports on the lesser models, 4 on the pricier ones - gone is the MagSafe adapter, the computer charges over USB-C now). They've effectively forced all consumers, even iPhone 7 users, to purchase adapters to keep their devices useful with the new MacBooks. There is no lightning connector, no USB 3.0 connector, no ethernet connector, and they've eliminated the SD card slot. BGR wrote an article yesterday that said you'd need to spend roughly $260 extra to purchase the necessary adapters required to restore USB, CD, Ethernet, Thunderbolt 2, and Lightning functionality to the laptop.
Out of the box, there is no way to connect a brand new iPhone 7 to a brand new MacBook. Even the Lightning headphones are useless with the new laptops.
That much said, I am in the market for a new MacBook, and given that within the next few weeks I'll be receiving a new Pixel XL, which uses USB-C, I personally wouldn't be tethered to the old ports (with the exception of portable flash drives, really) so it wouldn't kill me. I just find it fascinating that Apple deems it so necessary to "kill off" far from outdated technology. It isn't as if USB 3.0, ethernet, or SD cards are on the way out; they just want to grab as much in licensing fees and extra hardware sales as they can. I do find it somewhat silly that their two flagship devices can't integrate out of the box, though.