Now with the update you 'download your profile' instead of recovering it. What this does is, once a GT is downloaded on an Xbox, it's pretty much there forever. As long as no one is signed into it, you will never have to recover it.
With this being the case, will you be able to buy DLC, download it on another console (under your GT), and since you won't be recovering the gamertag back to your console, the DLC should work on both, correct?
I'll post this on the Xbox forums tomorrow but, it's gettin' pretty late so I'll be heading off to bed. Thanks in advance.