If you can imagine an iPad the size of Apple’s largest iMac, with the iOS multi-touch interface plus the power of OS X, then you can imagine the next generation of computing.
You’ll use it tilted at an angle on your desk like a drafting table. Or, you’ll tilt it up for TV or presentations, or flat for using it as a table. Or you’ll use it as a coffee table or a kitchen counter top. The point is: You’ll use it.
Apple has a gazillion patents for their version of this technology. Microsoft has already promised a consumer version of Surface. The third generation of desktop computing (after command line and GUI generations) is coming.
But Google has already announced the operating system for their giant desktop multi-touch PC of the future.