[Leparamour]

It's probably a step-up from just using a phone or phablet but with a Raspi you'd still need (compatible) monitors. No idea what the availability and markup is for these though reliable electricity might be another issue for remote regions.

[Tepix]

Pretty much any flat screen tv with HDMI will do.

[skydhash]

Here in Haiti, it’s the electricity issue. If you’re lucky you can get electricity for 6 hour a day. In the middle of the night. That’s why people prefer portable stuff, because you can easily charge them somewhere else (in my native town, there are people that have setup charging stations with batteries and inverter).