Another Silent Circle team member here (there are actually quite a few of us on HN). How would you envision a prepaid model working? We intentionally don't tra

Another Silent Circle team member here (there are actually quite a few of us on HN). How would you envision a prepaid model working? We intentionally don't track usage for 'in the circle' calling (if you're calling out on the PSTN we have to track usage, since we have a real per-minute cost, and need to make sure our bill matches what we think our users are using). The amount and sort of data we would need to collect and store about our users would be increased if we offered a prepaid option. We could mitigate this a bit by reducing the resolution of that data (i.e. you have a prepaid bucket of 'days' rather than 'minutes'), which would be better, but it would still involve us knowing more about your usage patterns than we do currently... (and the more we know, the more we can be asked to provide to a law enforcement agency). Even with the logging implications, a prepaid option might be a net 'win' for some users, or it might not be...