I think that bandwidth consumed by Circle should be free, since we're also hosted in AWS. Maybe somebody who knows more about the details of Amazon's billing can confirm/deny.
Great. Whoever the major commercial users are have a financial incentive to keep the service performant. They should all at least be sponsors at some level if they're not already.
Hey, as I mentioned in another part of this thread, my startup crunches those logs for a living (and they're sadly not really designed for crunching by anything that comes off the shelf). Ping me if you'd like a hand doing the crunching.