If you feel like getting the Mango update to the Windows Phone mobile operating system a little early, get ready for a lengthy installation process!

There has been surrounding the final release date of Windows Phone 7 Mango, one of the mobile operating system's first major refreshes. But whether the anticipated September 1 release is truly a rumor or not, interested phone hackers can now get their hands on the final Mango build thanks to an early internal leak.

In order to install build 7720, as it's known, your Windows Phone has to be running Nodo (build 7392) or one of the two beta builds, Mango (7661) or the Mango Developer Beta (7712). The internal update isn't device-specific, which might muck up any specialized software your phone happens to have installed. And you'll probably want to have a little experience in flashing your phone or, at least, a keen eye for the approximately 20-step process that the unofficial Mango update requires.

The full details of the update, which can take up to one and a half to two hours to complete, can be found within a post on the xda-developers forum. The update has been confirmed to work on the following handsets so far: HTC's HD7, HTC's Mozart, HTC's Trophy, Samsung's Focus, HTC's Arrive, Dell's Venue Pro, and LG's Optimus 7.

So what does the unofficial update get you? For heavy browsers, hardware-accelerated graphics and HTML5 support via the new mobile version of Internet Explorer 9. A closer integration with Microsoft's Bing will also allow you to perform hyper-local searches (once your location is determined via your phone's GPS), as well as identify any playing music that you happen to hold your phone up to.

Similar to Google Goggles, an integrated visual search will allow you to receive additional information on real-world elements that your camera can see: Like finding reviews and pricing information for a book when your camera scopes out a shot of its barcode.

This visual search idea will dovetail with Microsoft's new App Connect feature, which has been designed to remove the "silo effect" found on other phone platform  in other words, apps will now be able to integrate directly into Bing search results. You'll be able to quickly pull up prices of products you search for on Amazon if the corresponding app is installed, or buy movie tickets using your Fandango app, to name a few examples.

Of course, these search improvements are but the tip of Mango's iceberg. For the full details on Mango's new features, be sure to check out of the new mobile OS. Or, if you're feeling especially brave, install the unofficial leak yourself!

For more from David, follow him on Twitter @TheDavidMurphy.