It's been synaesthesia week online:

1. From the BBC, "A blind student has developed software that turns colours into musical notes so that he can read weather maps."
2. Mr Jones on Mr Moore and the idea of synaesthetic handset user interfaces: "It would be wonderful to harness synasthesia in the UI of mobile devices. Going beyond multimedia output and multimodal interfaces - delivering meaning in Gladwellesque thin-slices of preattentive recognised patterns."
3. Mrs Jones on autism and synaesthesia: "When I multiply numbers together, I see two shapes. The image starts to change and evolve, and a third shape emerges. That's the answer. It's mental imagery. It's like maths without having to think."

A few years ago I read the excellent Blue Cats and Chartreuse Kittens, a book on the subject (recommended). Interesting stuff, but I'd never even considered its relevance to work-stuff like user interfaces before...