"But there are times when people need a large screen and full-size keyboard.” "

Sounds like a minimal  lap top to me...lol...you can't put it in your pocket.

They're all(meaning computing suppliers in general) running out of ideas.

What's the battery life compared to my lap top of less than 3 hrs ?

If I have to carry something that big...I'll carry my full capacity lap top with all my Apps. and connection options.
Smart phone?.....lol

Whats the boot up time along with the "resumes where the user left off the last time he switched off."..?

All lap tops are going to have that feature very shortly.

doni