I want to know the answer to the following question:
What kind of interface does the iPod touch use instead of the click wheel?
All the background I'm provided with is that "The iPod Touch has no click-wheel; instead it uses a 3.5" touch screen along with a home button, sleep/wake button and (on the second and third generations of the iPod Touch) volume-up and -down buttons.". Is that enough to answer the question?
Answer: yes