500,000+ Xboxs in June?. I believe what Pachter says.
It should be pointed out that since NPD doesn't release numbers anymore, and the 500K figure comes directly from MS (if I'm not mistaken), consequently we can't apply NPD standards for what constitutes a "sale" to the number we have. Presumably, MS would have no compunction about counting consoles given away as part of a promo, or a large sale to a distributor in South America. All we really know from NPD is that the 360's retail sales in North America were probably at least 300K, which is enough to top the Wii and PS3 figures.