Hi Dox. I only play on one console! You can use your gamertag on any console, anywhere in the world. The only problem is that depending on where you actually are, you may not get to download some content through Xbox Live. For example--I live in Japan, but even if I use a U.S. Live account, I can't download movies, T.V. shows, or certain games (like UMK3 and Duke Nukem 3D) due to my location. I mostly use my Japanese account to download stuff, even though the Japanese marketplace is pretty bare.
