Kindle Capability in an iPhone

Apple folks, are you reading this? I think it would be fantastic if my iPhone had a Kindle App or something that would allow me to read books on the iPhone. I am an old-fashioned girl. I like having a book in my hand (and prefer that they come from the library or my good friend who gets free books through her work). However, (really, I can't believe I am admitting this) I do see the up-sides to a Kindle or similar device. Of course, if I could read a book on my iPhone, when would I read all the blogs I love to keep up with? I think what I really like is the idea of being able to read in the dark (you know, without a lamp) which would come in particularly handy when W is going to sleep on our bed (I know, it's terrible). I actually have one of those little book light thing-a-majigs, but I think it needs a battery. So, despite having read an article about these handy-dandy hand held reading devices, and thinking, "why would anyone need that?," I now must say, I'm ready for that App, Apple! That iPhone has really changed my ways of thinking (C is smirking while reading this, I am sure). Still, I can't imagine spending money to get electronic versions of books, and I doubt our local library has any of those to check out (although, I think that is coming in the future). I guess I'd be reading a lot of classics as I hear you can find downloads of those for free. Good thing I like classics!

It just occurred to me that there may be an App like this that I don't know about. I'm not at all technically savvy, so if there is, do tell!

Edit: They do indeed have a free Kindle App! Also, they have "books" that you can put on your iPhone. I now have The Secret Garden (a children's book, that is a favorite) on my phone in case I need to have something to read and am caught without a book. Thank you, Apple, but I still don't see myself spending money on many books, electronic versions or not.