There are some design elements, like the fabric backing, that raise concerns about its longevity.

While these other concepts are cool, the VertiFlex is really the star of the show. It directly addresses a common frustration for many users, which is the lack of a good portrait-mode screen on a laptop. If Lenovo can get the durability right on that rotating screen, this could be a major hit and a huge step forward for laptop design.

I tried out Lenovo’s ThinkBook VertiFlex, a prototype laptop with a display that pivots from horizontal to vertical. Here’s why I can’t stop flipping it.