Android :: Why IOS So Much Smoother Than Android?

I'm new here, and also new to the smartphone world. I've visited the site before, but just recently finally registered. I just got an EVO on contract. I really like it. It's not the best phone, but no phone is. Although the EVO is my first smartphone, I am not illiterate when it comes to tech. I consider myself pretty sound in the tech world amongst my peers. I would like to know one thing though, why does the iPhone have such better and smoother scolling/multitouch/pinch-to-zoom than Android phones do? I mean it is pretty obvious, and the scrolling on an iPhone is gorgeous. It follows the fingers so much quicker, does not lag behind the finger, and is just so snappy and quick and fluid. Is it the hardware or implementation of the software between the two operating systems? Is it because iOS supports only one device and is perfectly tweaked to fit that device whereas Android is ran on a plethora of devices/hardware/UIs? And will Android ever be this good? I thought that Froyo would fix this or at least be somewhat comparable to the iPhone, but it's not. And remember the iPhone has been this smooth since the first gens. You'd think Android phones would be up to par by now. I've never understood this and would really like to know why. I still love Android though, and even though the smoothness of the iPhone rocks, Android is still the better OS in my opinion overall. Oh yeah, I thought this was because the EVO has the stupid 30fps cap, but after using other Android phones, this is not true. Speaking of which, is HTC ever going to fix the cap and lift it? Sorry to get off topic.