The highest profile change coming with the next 360 dashboard update adds support for Kinect, but another, seemingly smaller change to Xbox Live is likely to tangibly improve the multiplayer experience for anyone on Live. Microsoft is (finally) improving the sound quality of its headsets this fall.
Jerry Johnson, Xbox LIVE Studios head, mentioned at Edinburgh Interactive Festival said, "We launched and we said we required broadband. We required a 64k connection, which not many people think of as broadband any longer. But that was the minimum requirement to run the service at the time. It's time for us to move on. Especially if we want to think about broadening - a crackly headset on the top of your head - not what people think of when they talk about popular entertainment."
How improved the compressed, distorted voices of other Live players will actually be remains to be seen, but it could hardly be worse: When I play multiplayer, it's like everyone sounds like whiny 11 year-olds.