Download iOS 5 Beta 3 IPSW for iPhone, iPad and iPod touch [Direct Links]
We reported earlier that iOS 5 Beta 3 is now available for developers. Now non-developers can also download iOS 5 Beta 3 IPSW files on iPhone, iPad, iPod touch and Apple TV.
Remember that you can’t install iOS 5 Beta 3 on your device unless you register its UDID. So first find your device UDID and register it then you’ll be able to install it on your device.
The below download links are provided by iMZDL.
Disclaimer: This is developers only version and might contain bugs. Download it at your own risk.