Xbox 360 will bring an almost completely new version of Xbox Live! Except for being free of charge, that is if you buy the more expensive version, you will be able to manipulate and handle your profile considerably better than before. Xbox Live! is hardöy any news though as it has been around for a couple of years now. However it has not been a very successful service as the number of users who actually use the service are less than 10%, earlier reports indicated about 8%. This will change though when Xbox 360 arrives. Microsoft and the head man behind Xbox Robert Bach predicts an increase by 400% to about 50% of the users that will use Xbox Live! and then mainly Xbox Live! Silver.
Source: gamespot
