You've got me there on portability. Mine's apparently supposed to be a desktop replacement anyways. Though I absolutely cannot stand those keyboards where all the keys are compacted into a tiny space. I much prefer my laptop's spaced out keys. I typo enough as it is, and those tinier keyboards would just make it worse.
WiFi and Bluetooth are far less damaging than the heat itself, though. I used to always carry a large hardcover book around to counter the heat, and then I realized I'd be better off not carrying that and just trying to make do with a bench or a table, since those would do the job just as effectively.
Mine has a terrible 3 hours of battery life, however, but outlets are abundant at my school, and I take notes better on paper anyways.