Touchscreen iMac rumors

Word on the street has it that a touchscreen iMac is in the works, including the possibility of the final product being a Mac tablet. While this might sound a little crazy a couple of years’ back, the hugely successful iPhone release makes such a device all the more tantalizing. Imagine using multi-touch technology while manipulating images in Photoshop, or working on virtual knobs and faders in music creation programs like ProTools without the need for a mouse. Would the release of a Mac tablet actually bring about the desired revolutionary effect that a Windows-based tablet was supposed to do? More importantly, would you pick up a Mac tablet if it was available?