What if the Surface 4 and surface 5 were 4-in-1 and 5-in-1s?

[TorchAtlas]

(BTW There will be no version numbers. Just 2018 edition, 2019 edition, 2020 edition, etc.) What could be the features that make it a super powerful 4-in-1 or 5-in-1? These would be ultramobile PCs, and Microsoft's next attempt at the mobile market.

 

[L0n3N1nja]

What is a 4 in 1?

 

[Timbre70]

Add in a radio, then it's a mobile pc.

 

[Link Kadeshi]

Pretty sure that would make it (at best) a 3-in-1. That doesn't really make sense, though, since with Wi-Fi, and services like Skype, PCs can already make "calls." If it folded, or in some way converted into a mobile device (read: Mobile Phone), then it could be a 3-in-1. That only really means form factors. It's a tablet, it's a laptop...