I found an article today talking about some new firmware replacement for the 360 that will still get you on Live.
Now I am not a fan of modding at all but I had to reproduce this link just for the following line.
(v1.0) Defeats all current and some future Xbox Live detection attempts
Not only does this hack allow you to pirate games and cheat online it can also see into the future :)… Shows the mentality of these people though doesn’t it.
Who would actually fall for that?
Source: Xbox-Scene News: iXtreme firmware 1.0 for TS-H943 Xbox 360
Last Updated: May 30, 2007