it seems like it has already been done here http://pi.minecraft.net/ you can download it for free haven't tested it out myself
as to the whole minecraft rant its like marmite you either love it or you hate it but it has got 2 side its a learning tool and its a endless game to pass the time
its like a lot of things that are used as learning tools they then find a second use as a game or something to do to pass the time
i personally think that it is a great game I'm 21 and i play it about once a week with my 11 year old brother and my 25ish year old friend
i think its great at taking gaming back to simple blocks and stripping the fancy graphics out of it
