An android computer in plug with wifi
A high energy efficient mini web server
Accessable via a reregistering service everytime the IP switches with a Browser extension that accepts the extension .Home or something getting the the address title from some web service.
Another Adnantage of such a plug is you could tell it to download for you torrents while the rest of your computers are off.

A Home site builder with easy ability to add coms software.
This way whereever you are someone can come onto your site and talk to you on the website and you talk back via an app.

a mini usb wifi with an on off switch.
Sometime when your hacked your hacked and you need to switch the coms offt what to do.

An Android touch screen box.
Like an android TV box but purpose built for Pc touch screens.

A lower Computer table
Computer tables are made for purching up and typing not leaning down and writing/drawing on a touch screen.

A Batteryless green tablet range.
Batteries cost the environment quite a lot so to does the production of Microchips.
It may be a good place to start to work on the greeness of the circuitry then later introduce batteries when green enough. Also excluding the battery might make for a cheap product. For example how cheaply could a single core 5.8" display Linux tablet sell for when OLED prices come right down I think eventually $15 when you consider in some very low income countries $2 a day may be what someone is adveraging then if he or she saves 50cents for 40 days they could buy a mini tablet like this with solar/Ultracapacitor power and use their tablet during the day.
Such a person doesnt have to be connected to the internet on some sd card they may have a Mini KHan academy and Mini Wikipedia Uni in 70 languages and then some.
In such a country you may be able to send an sms for 20c on some sort of low bandwidth que that covers a wider area at and below 180MHz.
Such a Technology thought out properly could help a child worker get to school easier and learn better and also help him or her to book in advance produce like rice.
Done right this could make whole developing blocks richer.

Compare this to selling Africans in Zambia 4G phones in terms of cost effectivness.
Very low coverage.
High Phone cost.
No on system knowledge base.
Battery waste and renewwal cost.
Similar sized screen.
Not as green in production.
Only a elite few can afford it.
Higher Power costs (because the computer I'm talking about only runs one or two cpus at a GHz the sun should be able to power sucha thing.

Peddle Powered low water washing machines

Open roof wide buses with special wheels designed for energy effciently monovering over pot holes.