As you said, there is no current functionality to do any account changes between your Xbox gamertag and the Live ID you linked to it.

I’m not sure what is planned in the future for this area as I’m no longer on the team, sorry I can’t help you futher.

Your best bet is to try contacting customer support, leaving a comment on the Live ID blog or a msg on their developer forum.

Note: In my quick glance around, I see you’ve posted this same message/comment in multiple places. You should limit how many times you post this around otherwise it’ll be perceived as spam.

I’m having a heck of a time trying to contact you - sorry to hassle you on your own blog but here goes.

I am curious who within Microsoft I need to email to discuss how passport.net / liveID handles Xbox Live account linking as well as email address changing.
This is all within the ‘backend’ of the system and unfortunately not available to customers right now.

I myself would like to do some stuff with my gamertag as well as my email address and unfortunately, to my knowledge the system simply doesn’t accomodate what I want.

I do realise it’s trivial stuff but it would be nice to know if there are any changes planned in future.

If you could direct me to who I need to ask (or if it’s you?) I’d appreciate it.

Let me know, I’d appreciate a response very much, be it email, comment on the blog or well anything.

Live ID licensing is simliar to the old Passport model, but I know they are actively pursuing ways to get 3rd party developers on-board. The more relevant thing is that now so many WinLive services have APIs and seem to be adding authenticated APIs, it makes more sense for them to open up the auth system (ie. the 3rd parties don’t need to adopt LiveID authentication on their websites to benefit from this).

Oh and LiveID Client stuff - nice… How is it licensed? Like Passport was, or different?