An anonymous reader writes in to let us know that IncGamers have an interesting article where they suggest Blizzard are using a new networking system in Diablo 3 that requires less communication between the client and the server and more client-side processing - meaning the impact of lag and latency in the game is much reduced:
F&F sources have it that Blizzard are using a new method of client/server communication that provides a secure and tamper-proof method of using the local client to handle its own calculations, while sending the data to the server for verification. The Client doesn’t require the server to respond, hence removing Latency from the equation.
The exact technical information of how this works is unknown, particularly how it protects the game from tampering with the client, however it is believed that the server checks all the data that comes from the client, and if it detects tampering it disconnects the client. This eliminates the need for the client to have to wait for a response from the server, and runs as business as usual unless the server doesn’t like what the client has sent it.
Such a development would be obviously great for Australians, who are presumably massively unlikely to see local servers on our shores for Diablo 3.
They've included a link to a YouTube video, purportedly from an Australia, which shows lag free fast-paced combat (but as someone that doesn't play Diablo, I have no idea what is going on, so maybe some helpful people can comment to explain):