Yes, you can pretty well count on the 921 not being available in QUANTITY until nearly February, at best ... it COULD be later.
They are riding high on the incredible increase in locals and the 811 coming out.
I have had it with my contacts in Echostar. They have strung me out too many times with "wait until this chat ... you're gonna love what will be revealed." (I think some others have been told this, too.) That's why I haven't said anything before the last couple of chats.
And ... then there's the "new HD channels starting in the next several months" (is this really dependent on the new summer 2004 satellite?).
I think E* is in for a rough PR period with the cutting edge subs.
There are a number of HD subs near me that are going VOOM. I'm not bailing yet, but I have to admit, I'm going to look at their experience closely.