I got on the wait list on 5/17 and finally receive my invite this afternoon. Wow, I'll have my first separate component HT processor in about 10 days(time for my Sony ES receiver to get on ebay). I've been more of a 2 channel tube sound kind of guy and only had separates for that. I hope the 990 is worth the wait, and will be significantly better than my Sony.
My invite also says that the second batch of 990's is ready to ship. So I assume orders on the waitlist should now be filled at a much faster pace.