Steve Jobs once said that touchscreen Macs wouldn’t make any sense because your arm would quickly become fatigued from holding it up in the air to poke the screen. So when Chinese company TMDTouch revealed its Zorro Macsk (that’s not a typo) that claimed to be capable of adding multitouch gestures to an iMac with mere plug and play functionality, my interest was piqued. Rather than add a touchscreen panel on top of the iMac, the Zorro Macsk uses infrared technology to track finger input. But does the $199 USB-powered accessory give the iMac a new lease on life? Read on for my full review.