Some intuitive likes and dislikes

I am thinking about some other devices.

the first is old phones, which are still present in Europe for people which don’t renew their phone or don’t want a smart phone, and probably in Africa (I don’t know the state of the market there) -> small display, key-taping oriented.
the second is e-book readers (like the Amazon Kindle), although these aren’t still widely used and web browsing is not their main feature, but web browsing is possible on many devices (although quite painful, at least on a Bookeen Orizon). Perhaps it shouldn’t be taken into account now as it, but kept in mind (particularly for projects like Wikisource, or Wikibooks), I heard people talking about a mix between e-book readers and smart phones in the future, although it depends of the evolution of the technologies and practices. The current specifications of such devices are: small display (600x800 on most devices), grayscale only (generally 8 or 16 grayscales), touch oriented, and the current most relevant (here) specificity is the time of refreshing (=renew entirely the screen, mandatory for any change in the display) of about 1 second.
it should also be taken into account devices for disabled users: Braille terminals and text-to-speech softwares; these could probably taken into accound during the implementation but it’s worth keeping them in mind.