Technically you will have those API calls available, but they won't be used by the default scripts.
@Memor-X:
Who said anything about being able to change the resolution mid-game? Yes, ARC will provide script calls for doing that, but they won't be included in the default scripts. If somebody wants to do that kind of thing, they are on their own. We are talking about a script working in multiple resolutions, not about changing the resolution during the game.
AAA games don't use vector graphics and neither do Indie games. They are basically all 3D and rendering a 3D scene in a different resolution is completely different in concept than rendering a 2D scene. In 2D games the only realistic solution for using different resolutions it that the graphics are either scaled to fit into the resolution or the game's contents include graphics in different resolutions (e.g. one graphic for a 1024x768 title screen, one for a 1600x1200, etc. or one big graphics that is simply being cropped on smaller resolutions).