I’ve been doing a little research and I believe XM is adding new channels. Direct TV had a page up here that had new channel info on that page but the info has been removed. Here’s what I saw in there:

Big Tracks
Big Tracks picks up where Top Tracks leaves off … these are the biggest classic rock hits from the mid 70s, through the 80s and into the early 90s.

Fuego (Alegria re-named)
Fuego plays the hottest sounds in Latin music today — a hot mix of reggaeton, Latin hip hop and rap. Artists like Daddy Yankee, Don Omar, Tego Calderon, Ivy Queen, Luny Tunes, Zion & Lennox and many more.

XM Chill
XM Chill takes you on a voyage into the Chill zone … a place that pulses with exotic and cerebral music known as smooth electronica. A European phenomenon that is finally emerging in North America, XM Chill is beyond a channel … it’s an experience in sound.

The Message (The Fish re-named?)
A bright mix of Christian pop hits from yesterday and today.
Artists — Mercy Me, Amy Grant, Steven Curtis Chapman, Michael W. Smith, Natalie Grant, Jeremy Camp

XM: The Heat
The Heat is XM’s home for hip-hop, R&B and today’s hottest music. This is the music that’s selling all over America and burning up the charts.
Artists — Kanye West, Chris Brown, Ciara, Nelly, 50 Cent

XM: Viva
This is the channel where Latin pop lives. Viva explores the rhythmic, contemporary side of Latin pop with the biggest superstars of the format. Enjoy the sounds of Shakira, Juanes, Ricky Martin, Thalia, Paulina Rubio and more.

The info is still in Google’s cache though. The DirectTV stuff is there if you go to http://www.google.com/search?client=safari&rls=en&q=xm+big+tracks&ie=UTF-8&oe=UTF-8

You can see the Big Tracks info I saw and if you do searches on the other channels you can see them as well.

Very cool stuff though. I’ll elaborate on this some more when they are official