Well slow Sirius.com is getting updates from the channel update last Thursday. The two Howard Stern pages just popped up, they do not tell you much but there are now there..
I'm told that "Any time now" you should hear something on 100&101
Stern Himself wants to make sure everything is inline, and he wants to have a part of the "loop"
Also I'm told due to contract his voice can not be on Sirius Airways..