The PlayStation 4 was the best-selling console in the US for the fourth straight month, according to NPD's figures for April. Microsoft's Xbox One was in second place with 115,000 units sold, though Sony is yet to release specific sales numbers for the PS4. NPD analyst Liam Callahan tells VentureBeat that together, the PS4 and Xbox One have more than doubled the sales managed by the PS3 and Xbox 360 in their equivalent six-month launch periods.

Microsoft has a weapon up its sleeve

While Respawn Entertainment's Titanfall was the best-performing game over April, that's thanks to the release of an Xbox 360 version to supplant the original Xbox One launch; PlayStation senior marketing VP Guy Longworth says that Sucker Punch Productions' Infamous: Second Son was the number one "new-gen" software title in April. NPD does not track digital sales of software.

Though the PS4 has exerted its dominance so far, Microsoft has a weapon up its sleeve. From June, the company will start selling a $399 version of the Xbox One without an included Kinect sensor, eliminating the $100 price advantage that Sony has enjoyed. The decision to backtrack on Kinect's mandatory inclusion removes a potential differentiator for Microsoft, but should help with the Xbox One's performance at retail — Kinect never established itself as a must-own technology for dedicated gamers, the kind of people most likely to pick up a console during its first year on sale.