We got quite a lot out of qualcomm, their custom cores are much better than the ARM reference in terms of efficency along with the built in radios helping a lot, quick charge tech and generally making the top chips have all the latest start dads so I know that I've got the very latest Bluetooth and WiFi technologies in my phone. The 820 is going through a die shrink and going back to custom cores, so we should get the greatness back.
Not sure about any touch screen device replacing my computer though. I barely use my tablet when the laptop is in reach because that's the best tool for most jobs.
Watch this and basically don't tell me you wouldn't use something like this if you could:
https://www.youtube.com/watch?v=-oi1B9fjVs4