Well, it looks like the first 64GB Zune HDs landing in customers' hands may not be the biggest Zune news today after all. As proudly announced the ZuneBoards website, the Zune HD -- and all earlier Zunes, although the potential there is a tad more limited -- "have been hacked." While obviously not the first hack of any sort for the devices, this is described as the "first true hack," and it has made the concurrently-released OpenZDK possible. That effectively gives developers "access to everything XNA withheld before," which more or less opens to doors to any type of application that can run on the Zune hardware -- games, emulators, app stores, you name it. Of course, there's not a ton for average Zune users to play with at the moment, but developers can find all they need to get cracking at the source link below.