Sometimes, a game goes through such a metamorphosis during its development cycle that it's practically a different product from its original release. Thus is the case with Minecraft, a little old building game, inspired by Infiniminer and Dwarf Fortress, and created by Markus Persson. Whether you can only play it for fifteen minutes at a time, or end up devoting hours at a stretch (often unintentionally) to it, Minecraft is intensely enjoyable, and an incredible bargain. Minecraft Beta will…