Regarding this, Fowler specifically said that the Surgeon Control System would likely be completed in October (pretty with bells and whistles and all that), implying that the patient carts would not be, which is obviously what they are working on right now. It's surprising to me that is not already common knowledge, especially when attending the AGM.
The somewhat "DUH" moment from management is the sudden introduction of the idea that the engineering units have to be completed before the human trial units...their rather sudden specification of this fact makes it sounds like that anyways...