Today, I get to show you how to install iOS 7 on the iPhone 5. Which in this stage, iOS 7 is at Beta 1 and by the method I used to install will give you access to the Betas until the final release where you'll have to restore to iOS 7 GM.
*Tip: Follow the video and you'll have iOS 7 on your iDevice in no time.
*This is without Developer Portal access. Meaning if you install the way I have shown... You won't be needing Developer to test out iOS 7 until GM where you have to restore.
Devices that are supported: iPhone 4, 4S, 5. iPad 2, 3, 4 and Mini and iPod Touch 5th Generation.