I think that XNA and MS' deep pockets along with their NEED for Japanese developer support, is a boon for Japanese producers who want to take back control of their creativity.
You may need the resources of an EA, capcom or Konami to develop for ps3.... but you may not need quite as much for x2 and the result may not be significantly different in terms of quality... if i was a developer (japanese or otherwise) striking out on my own, this option would be a significant enticement...