For any of you who read MCN you will know they have been on about the cat and fiddle run been dropped to 50mph with rear facing average cameras going up to catch bikes. And this sort of follows on from this.
I just saw on the BBC news on TV that they are rolling it out country wide, now while I dont have an issue with the 20mph in residential areas bit (although they do have some in my parents village and around York which nobody pays any attention too and still crack on at 30) I am less than happy with the 60 to 50 drop on A roads in the national limit!
http://news.bbc.co.uk/1/hi/uk/8009364.stm
I give it another 5 years before all motorways have blanket average cameras on the entire road network, and most the a roads have a similar system.
