Quoting Trei, Peter <ptrei@rsasecurity.com>:
Ryan suggested earlier that the Ipaq with Fireball isn't up to the task. I don't think this is correct. I point you to
http://www.stanford.edu/class/cs344/staff/group10/final_report.pdf
in which some Stanford students produce a wireless ipaq2ipaq VoIP system. Biggest problem is that it's simplex, not because of cpu limitations but rather that the Compaq HW can listen or make noise, but not both simultaneously. Using a headset which interfaces through the expansion port might enable you to avoid this problem (and the BT headset could also offload the codec). A 206 MHz Ipaq would, I think have sufficient HP to do the crypto.
I didn't mean the imply the Ipaq CPU (200MHz StrongARM) would be insufficient, merely that from usability standpoint. The "holy grail" would be working on 16-33MHz *dragonball* (== 68000) processors. *That* would be impressive. Doing this on a strongarm is easy. I'm not sure what the audio output from the ericsson bluetooth headset is, when it connects to a PDA. I've asked Monty (the ogg guy) and some others, and they think a 50MHz ARM7 is more than sufficient for the compression; getting it down a 33MHz 68000 (like in the recent high-end palm devices) would be cool.
I've toyed with the idea of porting SpeakFreely to Ipaq, but have not actually done anything at this point.
I've x-posted to coderpunks, since that group is more germane. Serious further discussion should be over there, IMHO.
Peter Trei
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