That includes extra time to get D10 into orbit due to the launch site not being on the equator, longer testing due to spot beam issues, and authorizing issues with some programming. I'll bet it could be live much sooner than expected, within 60 days or so. If there is the extra room that Scobuck says, and his source is a reliable one, there is no reason to use D11 until September.
Thats a good point, they could add more HD channels and you may never know if it's from the D 11 or another sat.
Jimbo