And so, an incredibly important bit of information is revealed:
Magic uses the metric system.
Granted, it's entirely possible "Magic" isn't technically speaking English right now, and that's just how Tedd's brain interpretted that bit of communication. For all we know, Arthur just heard "miles" instead (more American, don't you know).
Oh, and confirmation that Pandor's refresh was, at the very least, successful where it really counts. That's somewhat important as well.