I was wondering if you would consider open sourcing the code to minicraft wp7? It would make a great reference for other devs trying to make similar games, and also allow others to contribute to the game. I think it has great potential and would love to see it fleshed out into as rich experience as the original mincraft, potentially even more so.
I'm currently working on a port of the minicraft mod "minicraft deluxe". After that I hope to find some time to clean up the code of minicraft and publish it maybe on CodePlex or SourceForge. Although minicraft is not really a good example of how to code a XNA mobile game...