Hi LiJ,
Not being an iPod guy, I'm at a disadvantage, but I'm sure someone will come along who can help.
Two remote possibilities come to mind. What you wrote suggests that some sort of instructions preceded. He now wants you to apply the same step-by-step instructions (for the iPod) to the home screens. Did you "tune" some adjustments or controls - or "turn" them? (just a wild guess)
Best wishes, - A. (see - I just realized you're talking about Steve.) Maybe it's a list of future projects - going to make the same improvements on home screens which they just made on iPod. In some communities, to "turn" something can mean to "accomplish" something.