Update 1/8/2013 – Kuaiyong removed all paid apps. There is a very similar website 25PP.com that does the same thing and still has paid apps. You can view video on that here.
Here is video of an amazing website that allows you to download free apps and no jailbreak is required! That’s right, you can load your iPhone 5 with whatever you want. The only issue is that it’s a Chinese website that likely won’t be around for long. Enough people have downloaded the software from this website that IMO it’s safe. If you are paranoid then use AppCake instead. If you need the exe file you can download it here