OK I'm probably in a similar boat to most people in that I really can't keep track of all the usage changes every two seconds. I've just signed up for skybybroadband and will use the BBC thing when its out so expect my usage to go up quite a lot. Im currently on the Premier 2mb package by the way.
What I was thinking is for the view my usage feature to have a kind of countdown of how more you can consume before you start hitting your limits. Not that hard and every time F9 changes its mind over things they can just change some central variables and it'll update for the rest of us. How about it?