The chances of Apple releasing a touchscreen iMac any time soon are probably pretty low, but there are ways to touch-enable certain desktop Macs. Shenzhen-based TMDtouch has decided to take up the cause with Zorro Macsk ($199), a cover that turns 21.5” iMacs into touchscreen devices without any modifications; you simply slide it on, plug in the USB cable, and it’s good to go.
