Super-HD is something that Sony is apparently looking at while believing that new advances in silicon designs could make resolutions of 4K/8K possible with low latency. We have to think, however, that with people just making the transition to HDTV 1080, it would be hard to get folks to upgrade again.
Still, having that type of ability in its next console could really help Sony drive Super-HD 4K/8K, as it will take software and applications to make it something that is really ready for prime time.
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