When should apple release ios 7 for the iPhone 5?

Been waiting & I'm very impressed with the all new operating system. Can't wait for the hands on experience

The iOS 7 itself is coming this fall, and you should get a update on your phone

In Fall.
There's a way to install it now but there's a chance you could f*ck up your phone. (I had to restore my phone because I tried to install the beta.)

Apple said it is coming out this fall

It comes out to the public in the fall, but you can try it early if you register your device's UDID on a site like http://www.instantudid.com/.It's $5, and then you can install the beta before everyone else.