I don't know if anyone's stopped fiddling with the format for long enough to actually read "Mistborn", but if you enjoyed it, you might like to know that Brandon Sanderson has another novel for free, a new one, as yet unpublished in dead tree format (DTF?), available in lots of formats at
http://manybooks.net/titles/sanderso...arbreaker.html
In case you didn't know, he's the guy who's been given the job of writing the last Wheel of Time book, following Robert Jordan's death.