Reply to post: Re: But why do I have to choose?

Re: But why do I have to choose?

Lenovo Helix-B basically is what you are thinking off. Has a light "keyboard only" cover and a heavier "with battery" keyboard unit that is similar to the Surface/Book in design (well, other way round).

TPT/10 with dock can do the same, has a "classical cover" and IIRC a "folding stand" as an alternate.