Re: mature market ?
agreed,
we're still using our Z2 & Z4 Xperias at home.
I have a Dell windows hybrid, but it's not able to compete with the battery life and sheer portability of my Xperia.
There's nothing as thin and light on the market atm. The Z4 is 'waffer thin' and light as a feather.
but they do the job for years and years.