Looks like Meizu's Color OS, but the bezel ratio looks much better.
Ya, I think they probably used that as a reference picture to help demonstrate what the rumor could look like on the S6.
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Honestly, if you really think about it, it wouldn't be hard for Samsung to knock this out of the park.
Full metal design is what people have always wanted/demanded of Samsung.
Potential front facing speakers catches them up to HTC/Sony, etc.
Potential larger finger print/home button catches them up to Apple's Touch ID
Promised software optimization should keep TW in check. Early leaks indicate this is looking well.
Promised battery optimization both software-wise and chip-wise (and then along with all their Ultimate Battery Saver's Mode features) should really help abate, hopefully, those who are worried about non-swappable batteries.
And who knows what else Samsung has up their sleeve in terms of hardware/software features.
Then, as a bonus, don't forget there is the Edge variant that could appeal to niche users.
Samsung has a chance to really impress here. This is the year to do it.
