I don't think it would be a negative to have the experience listed on your resume.
Personally, though, game coders make crap pay for long hours. The results are fulfilling, but the job to get is Producer. I'd consider relocating as a producer, and use my experience writing Xbox software to get the job; why not? It's quite an accomplishment to do the same job it might take ten people and a direct support line to M$ in shorter time to get a small game to "market"