Apparently people at Games Digest saw something called a "Gamercard" during a live demo of Unreal Tournament 3 on the PS3 and it seems very likely that it will be very similar to Xbox Live's Gamertag system. Now my question is why isn't Microsoft getting patents for some of this stuff that is quickly being stolen from Xbox Live? Achievements, Gamertag, basically anything new that Microsoft comes up with gets stolen. Sad.
source: http://www.games-digest.com/2007/08/gamercard-spott.html