So let's get this straight
Audio Quality
The original post was about the IN-EAR headphones. These are different to the previous Apple headphones that didn't have 'the little rubber bits' at the ends, hence the name 'IN-EAR'. They kinda, you know go in your ear, not just sit just outside them. Also, they have a 'woofer' and a 'tweeter' in them, as opposed to just one speaker, like the previous headphones. All that said, there are TWO new sets of headphones coming from Apple:
1. The ones with the little rubber bits that have a woofer and a tweeter and new remote
2. The ones that look like the old ones but have a new remote
THIS EXPLAINS THE PRICE DIFFERENCE
Now, onto iPhone compatibility.
The iPhone has different hardware in it compared to the newer iPods (read: the little hole you plug your headphones into is DIFFERENT in the iPhone and the new iPods. This means that the iPod ones can do more things than the iPhone ones. Crazy, I know. So, the iPods can use the microphone, the middle button AND the volume control (because they have a special little band in their hole that the iPhone doesn't)
The iPhone can do these with BOTH of the new headphones (the ones that say YES after them, they can't do the ones that say NO after them, in case you were wondering...)
Audio: YES (duh)
Microphone: YES (yay!!!)
Middle Button: YES (woo hoo no change here!)
Volume: No (so we just have better quality headphones with rubber bits and a woofer and a tweeter, which is better than nothing)
"Two cents:
My iPhone EDGE headphones (purchased February 2008, and well looked after) are coming apart at the microphone. Well, the wires don't seem to be as everything is working fine, but the rubber tubing has pulled away from either side of the mic/remote unit. It's a bit disappointing, but considering they get used EVERY DAY I'm not going to cry about it. Just wish replacements were less than £18.60 (new VAT price I think).
I think that covers it. Cheers.