Windows Phone 7 has been out for just over a year now. In that year it’s had some disappointments, but also some great successes. Among the successes it can count an abundance of positive user experience from people who’ve given the fledgling OS a chance, as they’ve discovered with some level of delight just how fantastic the fresh Metro user interface really is (more on that later).

But among it’s perceived failings is that, unlike earlier attempts at mobile, the new Windows Phone is not typically known as a “hacker’s paradise,” instead opting for a very locked-down experience that keeps the OS running ship-shape 99% of the time. That’s a good thing for most users, but it annoys the crap out of people who want to customize their phones to the Nth degree. The good news is that in recent months, that’s begun to change, and today there’s a new ROM for the much-beloved HTC HD7, this time featuring the latest build of Windows Phone 7.5 (AKA Mango). Head on over to XDA Developers to check it out!