It'd be really interesting to see a performance analysis of what's going on there. Is it just a weaker CPU or are the apps less optimised as well? The two phones were comparable right up to the time they loaded a game and it just fell behind further and further from that point on. Why is loading that particular game so much slower? The developers didn't care to optimise it?

edit: The article points out that the resolution of the Samsung display is a lot higher, so it's not quite comparing apples and oranges here. I'm guessing that a much higher resolution is pure win when drawing mostly vector graphics i.e. apps but really kills you when loading games as presumably they're paging in much larger assets from disk.