Take that, live tiles. The idea of having folders on a Windows Phone Start menu has long been a dream that may soon come true. Successfully demonstrated in the above video by WindowsPhoneHacker, these folders look just like live tiles, but pressing them will instead take you into a customized menu full of whatever apps you want. Of course, the project's still in early stages and has a ways to go before it's ready for primetime, but it's supposed to be released sometime soon. Go ahead, click those heels together three times and make a wish -- just make sure your device runs Mango and is developer-unlocked first.
Microsoft Windows Phone 8.1
Microsoft Windows Phone 7.5