[color="Red"][SIZE="5"]HTC HD2 can now dual-boot Windows Phone 7 and Android...ready![/SIZE][/color]
[color="White"]You've seen Windows Phone 7 and Android both ported to the stately HTC HD2, now how about having them on the same device at the same time? Well, not literally at the same time, that'd be all sorts of confusing, but the restless souls over at xda-developers have figured out multiple ways to install both WP7 and Android on the HD2 while using the same SD card. We've looked at them and none of the methods seem particularly trivial or, you know, easy, but then what would be the point of a dual-boot solution if everyone could just up and do it? Detailed instructions await at the source link.
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YouTube - HTC HD 2 Format the sd card for installing Android on WP7