The OQO was mentioned elsewhere, I too wanted it for this years ago, along with a Pico projector and virtual/projection keyboard. Now that I've been disappointed by both the new MBP and the price of the current gen Google/Android phones, I've started wondering if I can spend $1000 on a new "phone" and use it for everything (with peripherals left at each site). I briefly investigated this approach just a few days and found Debian noroot and AndromiumOS (see also their related Superbook kickstarter, which did really well -- though personally, I don't want a laptop if I go this route). Quite a bit needs testing, but it seems promising, maybe one generation away still (USB-C/3.1gen2 everything, with power).