Just got my new xbox mag this morning
Video conferencing/chat is coming to XBL

In the autumn! You'll be able to see who you are playing against (although the game will probably have to be enabled with it) and also have group chats of up to 5 people i think it is.
Also in the mag they had a mention of a new XBL arcade which plays straight from the live service so you dont actually buy a CD. Loads of old games on there, but also bejeweled

Should cost a one off payment of about a fiver it said.
XBL is looking better every day!!
(ps ninja gaiden demo is awesome, shame i died in it

).