WRT to aspect ratio, I suspect that Google and Samsung (and others) are making a big VR bet, which is also why Sammy is giving away VR and pushing the 260 cam (which looks great, btw). But if they are, the ~2:1 ration makes more sense I think. I've not played with it but I don't think the 16:9 ratio makes a lot of sense to the mind in VR.
And unless Apple does something weird, the 2:1 ratio is here to stay. 16:9 is just holdover from the last aspect ratio war in which it (16:9) won because it was the average. 2:1 is the new average and also makes more sense for other purposes.
But the curved corners are bananas, man.
Still, I went with the S8+ because it is beautiful. Since I only watch movies on my phone on planes and since I don't travel for business very often anymore, having the overall larger screen was better for web and book content.