Let the hive mind of Engadget get that for you.
"I've found myself using my PC for a lot of conversations lately, and I'm also considering recording a podcast to share with anyone who will listen. There are tons of USB headset / microphones out there, and I'm hoping someone has some solid recommendations based on experience. I'll consider both headsets and standalone mics, by the way, but I'd like to keep the bill under $100 if possible. Help!"
He was a bit vague. An ADC membership has always cost money, but then again XCode has always been free. My guess is anyone will be able to develop an app using XCode for no charge... but if you want to publish it through the "EXCLUSIVE" distribution channel you'll probably have to be an ADC member; which will cost $99.