Now this is an unexpected surprise.
Microsoft has announced that a retail disc version of Minecraft: Xbox 360 Edition will be released on April 30. The game will carry the same $19.99 price as the Xbox Live Arcade version and will work with the same Skin Packs and Title Updates as its downloadable brother.
The disc version will include all of the content from the eight Title Updates released for the game so far as well as the upcoming ninth Title Update, which will contain The End, the Ender Dragon, and a variety of other additions and tweaks.
