So, hello again.
A creative person managed to do a dongle that connects iPhone to a DSLR camera.
(this is not especially interesting for me since, you know, I'm a CHDK fan but still...it aroused me )
It's called TRIGGERAP
Yet, since I'm an impacient guy (and a relentless net rat), I found a .... DIY version.
And I did it.
And it works....
And it's....quite small :-)
Now....I'll try to figure out how to adapt it for CHDK :-)