Well one thing is sure. It might be awhile before any of us go online using a backup disk (or whatever you may call it) with xbox live.
1. Get XBConnect http://www.xbconnect.com/ from here.
Then you can play any game you like as long as it has system link..
however there is some disadvantages. You have to play someone with
a high bandwidth connection. However its completly free. Not sure about
other things like live talk but hey... its an alternative while we wait
to see what happends with mod chips and xbox live.
P.S. i am not trying to advertise or anything... just trying to help out
if you dont know about xbconnect give it a shot. I think they are also
working on support voice chat and stuff just like live. but hey its free
and it works
hope this helps laterz