IF the price cut is not enough to push hardware sales then august would be a nice prediction.

I think Kinectless will get Xbox fans to finally move from 360 to Xb one sooner than they planned, which means a long term lift for Xb one and so a smaller weekly gap. So I think it will take the rest of the year for PS4 to double Xb one.

This month or July. After that, X1 will start to sell more to close the gap a little.

ltd?
worldwide?

2015 maybe


right now the ps4 need 2 month for 1 mio sales
if the p4 gets a big destiny bump and xbox didnt ps4 can mage to be 2:1 temporarily until holiday
so only if the xbox one stop to sell anything

right after christmas

Check this out.
For PS4 to double X1 by the End of December 2014 for instance,
if we count from June:
PS4 will have to sell 550,000 or more each month and X1 would have to sell 200,000 or less each month from June to December.
This is just an example. But you guys get the point.

the watchdog week was allmost 4:1 and the whole may was closer to 3:1 than 2:1...

not one wee since titanfall launched was under 2:1... the xbox is getting destroyed in europe...

Decembe 2014-January 2015, PS4 will reach 15-17M, X1 8-9M in December

Sept. As things are going and the imminent Destiny on PS4 domination.
It should happen then.

September imo