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Apple Patent Watch: 'Spaces' for Tablets, Multiple Cameras for 3D iPhone Photos
One patent application detailed by Patently Apple describes a concept for bringing a "Spaces" style workspace switcher to the iPad. While the interface is extremely similar to that found in Mac OS X and in fact uses Mac OS X running on a tablet-style device in image exhibits within the application, it does reveal that the company has considered how such a system could be implemented on a multi-touch device.
According to descriptions within the patent application, Apple envisioned invoking Spaces on an iPad-like device with either a two-finger pinching gesture in a specific location or by using a five-finger tapping or pinching gesture. Various interactions be used to either switch directly between workspaces or to display a graphical representation of all workspaces for selection or to drag windows between workspaces.
As noted by AppleInsider, a second patent application discusses the potential for including multiple cameras on the iPhone to enable users to take three-dimensional photos. In particular, Apple discusses hardware methods of employing three sensors to pick up different information about a scene, including individual sensors for luminance (brightness) and chrominance (color) with a third sensor to provide alignment information for constructing a three-dimensional image rather than relying on software extrapolation for such purposes. Apple argues that the system would produce higher-quality images and reduce processor load for creation of three-dimensional images.