Tox: A simple, distributed, free, secure Skype replacement. Now alpha with A/V
I guess you've settled on a name, pretty completely, but tox evokes all sorts of bad feelings like "Toxin", "Detox" - generally feelings associated with the idea of poison or of poisoning yourself. From a marketing perspective this might not be the least sinister name you could have chosen. I realize this comes out of  4chan and we make a point of not giving a shit about marketing but...