One of our editors has a Palm Treo cell phone. He loves it and thinks of it as simple to use, but the rest of the staff dismisses it as too complex. We think Audi’s MMI is similar: Cleverly done and highly functional, but with a discouragingly steep learning curve. After a week with the Q7, some of its functions – such as programming the navigation system – were becoming second nature, while others were still frustrating. However, we all agreed that more operations should be taken out of the system since even switching between AM, FM and Sirius satellite radio is maddeningly complicated. Still, MMI is the best – or maybe we should say the least bad – of all the single-knob multifunction systems currently available.