Thanks for your time. I hope this isn't considered too off-topic... (I mean, I *could* have posted an incredibly interesting piece about the Challenger disater instead, eh Eric? ;-))
Perfectly on-topic, Graham. That said, I think that designing custom hardware for sound sampling is a waste of time, given the abundance of multimedia cards that already work. The barrier to entry to solder up even the tiniest, simplest circuit is enormous for most people. Cypherpunks is not the Privacy League for Hackers. The solutions that we make should be to the greatest extent available to all without special prerequisites. That means that hardware should be freely purchasable, since the resource of money is more widely available that the resource of hardware skill. It means that software should not require root for Unix machines, nor, if possible, knowing how to operate a compiler. While I applaud your enthusiasm, your effort toward getting usable secure phones would be much betting spent writing device drivers for various soundblaster-type cards. Eric