This is very good news! It should bring a substantial performance boost to iOS devices, and should mean we can finally get rid of non-browser "wrappers" like CocoonJS and Ejecta completely, and move to WebGL-accelerated PhoneGap with a real browser engine and no annoying compatibility problems. With Crosswalk covering the Android side things should be looking pretty good by the end of the year...
Not so wise words, not everyone have new iPhones but they are still using, not everyone can afford to buy new iPhones because iOS 8 won't support iPhone 4.
This is Ok news, not very good news.