PS4 will not restrict games from other regions, Sony's Shuhei Yoshida and Brad Douglas have confirmed. Also, it will not block used games at all.

UPDATE:

And yes, PS4 is region free :D

— Shuhei Yoshida (@yosp) June 11, 2013

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ORIGINAL STORY:

@feitclub SCEI PR tells me "no region locking".

— Brad Douglas (@kazamatsuri) June 11, 2013

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We've not had an official word on this yet from Sony, but we've asked them for comment.

What do you make of the above?

Also, check out the following:

Sony E3 2013: PS4 is $399, no changes to used games.
PS4 specifications – 500 GB hard drive, Dual Shock 4 costs $59.
PS4 will cost $399 when it launches this holiday season.