that's true. A15 based Exynos 5250 will pack more punch than A9 quad Exynos. But it will probably be late Q3 or Q4 this year for any device powered by that to come. I guess Samsung will reserve improved version of A15 Exynos for SGS4 early next year. Also it seems that sammy intends to sell Exynos line of AP to other phone vendors as well. Some Chinese company already made phone with Exynos.