And that's about all. Sony have shipped the units to retailers, this number does not refer to actual units sold to consumers.
As this story broke, updates were hitting hard and fast, with Engadget confirming with Joystiq (who talked to Sony) that these units did indeed represent shipped units and not consumer sales, Joystiq's actual words on the situation?
"A Sony representative explained that the 4.1 million actually represents Move units shipped to stores, adding "While we don't disclose our exact sell-through number, the key is that our retailers continue to ask for more Move units and are taking every unit we can supply them with based on their sales." Which, you know, would have been a cool thing to put in that press release, we think."
Another fact to consider is 75 percent of the sales in the US are in bundle form - which means new console sales and software groupings.