NPD MS press release. 

"Over the past month, we’ve seen a strong spike in interest in our Xbox One console options, including the new $399 offering, and the amazing lineup of games announced during E3. Since the new Xbox One offering launched on June 9th, we’ve seen sales of Xbox One more than double* in the US, compared to sales in May, and solid growth in Xbox 360 sales."

* Internal data based on retail calendar and sold through numbers

Since they said nothing about being teh best selling console fo the month, I guess its safe to say the PS4 won in June. But getting over 100% $399 SKU boost is impressive.

So what are the estimates??? Double may sales, PS4 potentially selling more but by how much?

That should put the XB1 at around 150k or more for june.

So, 77 x 2 = 154!
Minimum 154K.

I said 162K!

http://gamrconnect.vgchartz.com/thread.php?id=186910&page=1

may - 4 weeks
june - 5 weeks

is it not?

My bad. But in my defence that thread should have been put under Sales Discussion, being that this is a sales website to begin with. I don't own an XB1 and don't have the Microsoft discussion forum on my forum lists.

Yup five weeks. Though in MS defence being that the price drop didnt take effect till the 9th we could say that no one bought an XB1 during the 1st wek of june. Kinda. At least doing 150k-170k isn't bad considering how it has been for a while.