The miniature $35 Raspberry Pi computer, as pictured above, can play Minecraft as of today, satiating the three-month wait of eager Pi users. Mojang's buildamajig is available to download from the game's Rasperberry Pi blog, with instructions there for how to set it up.
The Pi Edition, as it's dubbed, supports multiple programming languages, and can be yours for a grand total of zip, nada, and niente i.e. it's free.