I'm also interested in the gog thing. I'd like to avoid steam if possible (drm) and gog should be a more reliable source for re-download, but there might be reasons I do not yet know why Larian Vault would be the better choice. As long as the game version released would be the same for all platforms (unlike DD) I don't see a reason for Larian Vault, except that this means more profit for Larian? Let us know!