While I may be in the minority of liking most of the stuff Stainless has put up on XBLA to date, this headline was too good to pass up.
Ben Gunstone, a Production Designer at Stainless Games, has put together a 11 step "tutorial" for making XBLA titles. While many of the steps are thinly veiled complaints at either MS or the world in general, it actually makes for an interesting read. Those looking for anything resembling a tutorial however, will need to keep looking.
One of the more interesting things of note in the piece, is that Stainless are planing on putting out a title update for Crystal Quest that will change which levels are available in the demo version of the game.