Via Open Book:
Inside the Vatican interviews Sr. Sara Butler of the International Theological Commission about its document on limbo.
I don't think the actual document is available online yet. From the interview, it seems that the document doesn't really say much that is new, nor does it rule out limbo as being a possible theological opinion that Catholics can hold. So... no real change at all, though we are encouraged once again to pray for those infants who die without baptism that they may, through the grace of Christ, see God.