Days ago I post this amazing app can let your iPad become a Windows 8 tablet, and guess what, you can download it for free now just on PandaApp.
Win8 Metro Testbed is great for developers looking to test their Metro applications or users who want to get a feel of how Metro will behave on a tablet. Unfortunately, you will need to have a Windows 8 computer to use this app. A helper application is installed to let you access the UI from your iPad. You can find instructions on how to install Windows 8 on your Mac using Bootcamp here.
You can purchase Win8 Metro Testbed from the App Store for a limited time price of $24.99.
And Now Download it for Free: