This is a really neat idea! Just a suggestion though, if you do make it into a blog post, be sure to either reword the story or include the names of anyone who contributed towards the final product.
Continuation Paragraph: Callan was hesitant on approaching The Hacker's hut for two simple reasons. One being the human head hung on the outside wall of the hut. The second being the fact that he was supposedly alone, in singleplayer. "How could someone hack into the complex systems that combine to create the world of Minecraft?" Callan said out loud to himself. He was used to doing that because he always assumed he was alone in his own world. What he was not used to however, was getting an answer to his own questions from someone other than himself.
DUN-DUN-DUUUNN! I think that is a decent cliffhanger for someone else to work with. If it is alright with you Xtremebrawler I would like to join in on this again after more people post. Either way, I'm still stoked to see the final outcome. Post a link to the blog you make on this thread maybe?
EDIT: Damn. A little late as usual. This was made before anyone even posted on this thread but people may still want to see this anyways. Just tell me if you want this deleted to not confuse people.