There is a section in the Second Life™ forum about technology: Tools and Technology. Thursday afternoon (1/16) Linden lab posted article there titled: Raising the Roof: The HTTP Project. The post is about the changes coming to how the SL Viewer and SL servers communicate.
The abbreviated point in the post is: communication between our viewers and the servers is and is going to be better and does and will use less bandwidth. This means fewer problems logging into Second Life. Also, more reliable connections and fewer disconnects. The changes will mean fewer capabilities from routers and gateways will be used, allowing the less expensive routers to handle Second Life better. And in general things will download faster. Continue reading