Latency

"I was told uk users have to share latency speeds now, this is unacceptable and unfair."

What does this even mean? Latency is not something you "share" per se. You and your neighbor may have the same latency but there are so many factors that contribute to latency that there may be different reasons for you and your neighbors latency. You
may have latency in common but not shared.

The dashboard latency test is meaningless. It has nothing to do with your gaming experience. You will not be playing games connected to the latency test server.

The Xbox does not control your latency. Latency is purely determined by the location of the game server you are connecting to, and the route it takes to get there.

Try to play on servers in your own region if you are worried about latency.

You spoken about latency in your connection, but all form of latency is an issue when you play online, also TV latency.

If you have a relatively new TV with Game Mode enabled, your TV will have an average of 15-25ms but old TV without specific Game Mode, sometime have over 80ms of latency... and you must consider also this, not only internet latency.

I mostly play halo infinate and the latency on that too reaches 150 ms.

The sole reason I have been trying to reduce the latency on xbox for a month is the unplayable level of latency on halo infinate.

Kinect will never have "zero latency" even today's controlers don't have "zero latency"