Ive wondered that myself, but i doubt it will happen.
Physical distribution is a lot more complicated than digital distribution and I think any small developer would be opening a proverbial pandora's box by setting the precedent of distributing their own product on any sort of scale (excluding digital distribution).
Using a script to accept payment and allow downloading is a far cry from taking orders and having to post copies around the world (im not sure how customs would work into this, but the worlds' government tend to want a piece of every commercial pie).
Our best bet for an xbox release will probably be to either wait for a US release or import a copy in from Canada, as Canadian xbox games share the same region and format as US xbox games.
