I think the fact of the matter is as a developer I want to get angry at them and then remember this is my own worst nightmare - mistakes happen, the true test will be in how Twilio reimburse people.
Yeah, I see a lot of (completely fair) angry comments in this thread. But honestly the response has been pretty damn good for what happened, and we will see how it plays out.
Any one of us could have made this mistake and Twilio is a great service, otherwise you wouldnt have seen many people here complaining at all!
As I indicated above Daniel, if you haven't shot a note to help@twilio.com indicating you're affected by the incident, please do so we can communicate directly when this $480 mistake is corrected.