By the way, besides the wacky keyboard blind people also have another, erhm, ‘perk’ in their use of phones: they, pretty obviously, keep the brightness at zero. Gonna last a long time on a charge.

I keep thinking occasionally that some things that I do with the phone could be done with a small one-handed wireless remote/controller and audio output—so I could trigger them while doing something else, e.g. walking outside. For example, Anki already supports either a specific remote or bluetooth remotes in general, and has TTS. Also, there are games using audio as output, which might work in a similar manner—may be interesting to try, if not very engrossing.