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!"
Actually this is just a "me too" version of the Linksys, Junxion Box, Kyocera KR1 etc Wifi/3G routers, these have been around for a couple of years. It's got nothing to do with T-Mobile @Home.