Obviously UK only, but now there is a petition asking the government to look into the price gouging for Vista in the UK.
You can even see a list of all the people that have signed so far - and yes I signed it, although I don't expect anything to come of it - but if the government did do something about it they would then have to do something about all the other software companies that do this (i.e. most of them).
I don't think I want to sign it, I wouldn't want the government to do anything about it (and I don't think they would). I think involving the gov in something like this may put off investment from tech (or any other) companies in this country.
Having said that, maybe it will get some media attention around the issue which might not be a bad thing.
I wouldn't hold my breath, although George Osborne did get coverage yesterday for suggesting that Whitehall should be run using OpenSource!!!!:s:s:s:s