So Microsoft and Quallcom want us to be excited that their new expensive devices will do pretty much what our Apple and Android devices have done for the past many years.
I have had laptops at work that run two mobile cards from two vendors (Verizon and Sprint), Wifi hot spots and hard Ethernet ports. It evaluates the connections and communicates using the channel with the best current connection. Hardly seems groundbreaking.
It's a lot like a normal computer, except it doesn't work until you pay $50 a month for an extra data connection, for some reason.
Also, it probably tracks your location, steals your private data a lot more, and turns the ads up to 11. So in other words, it runs Windows 10.