Hey! I just bought that game 2-3 days ago!
I agree that it is addictive, but after having invested what I think has to be at least a dozen hours into it I have started to get bored with the relative lack of options in it.
Though to be fair, the game is still just in an alpha stage (though the official Minecraft page says that the beta will be finished soon, and with multiplayer support!). I can only imagine what will be in the final version of the game once it is finished(I believe that the developer/developers has/have said something about goblin villages and achemy!)!