Westone UM2 in ear studio monitors are awesome! No inline controls, but superior comfort and audio response! I've been known to spend the entire day in my shop with them in/on! I've used these for over 4 years with the iPhone 2G, 3GS, and now the 4. Apple took a nice step when they discontinued the recessed headphone jack. Adapters simply didn't last very long. The issue I'm having now is with the iPhone 4 cases and rings, my headphone plug has a square plug and the cases all have tight round access...exacto knife to the rescue! I just ordered some Klipsch S4i's with the inline controls, we'll see how those fair.
For those of you who are happy with the Apple headphones, you have no idea just how much of the richness of music you're missing...those are great for phone calls...