Regarding the dialogue, it was apparently written by Smith himself and possibly Heather. Is it just more lines from the comic or entirely new writing? Either way, it's pretty cool that the digital nature of the games' distribution allows for this kind of postmortem expansion, not just for the tech but, it would seem, for the story as well!
But, wait, does this mean that the bitter fan schisms that result from multiple versions of the same film will also occur with Telltale's games? Will "purists" insist on only playing the "theatrical cut" of Bone, with the original actors and unaltered scenes?
And hey, check out the nice Sam & Max banner that Jake put up! Doesn't it make you want to buy the game a second time?