And even if you do like tablets, typing even relatively short messages on a tablet is seriously non-fun.
The keyboard on the new Samsung Chromebook is fantastic; basically a clone of a MacBook Air keyboard. The touchpad also works really well. (Though I do miss three finger or tap-and-a-half dragging. On the Chromebook you have to click-and-hold the touchpad to drag.)
Sure you can get a netbook and run Chrome, but I have one of those and never use it. The screen flickers, the keyboard is mediocre, and the touchpad sucks. And it's from a good company too.