Fantasy speculation: An iMac without the chin, only 2-3x as thick as an iPad, with a touchscreen.<p>Acts exactly like a Mac when on a vertical stand, but can be placed flat on a table or drawing board and work in the iPad UI idiom as a giant multi-touch canvas.<p>In Mac mode, iPad apps run in windows as they do in the DTK. In iPad mode, Mac apps go into Fullscreen or side by side mode as they do when maximized on the desktop.<p>This is how I’d do it if I had already done all the groundwork Apple has done.