Hirst No.2 (2006) 42 EHRR 41.
The Council of Europe has now reminded the U.K. of its obligations to comply with rulings of the court - see The Guardian 9th March. Progress on this issue has been slow. The government held a two-stage consultation with the second stage ending on 29th September 2009 - see Ministry of Justice. Given that a general election is only about 2 months away, it seems unlikely that any change to the Representation of the People Act 1983 will be made by the present Parliament.
Is such disenfranchisement necessary at all given that the right to vote is fundamental to democracy?
Addendum: 10th March - see the views of The Prison Reform Trust.
Addendum 2: 12th March - see The Times "Should Prisoners have the right to vote" - a comprehensive summary of the arguments for and against. Unfortunately, the article does not look at the arguments relating to any "compromise" solutions.