[Thanks to Alex Jones of Bunkers Solicitors for telling me about this]
The Law Society has, yesterday, published guidance on the Damages Based Agreement Regulations 2010 which regulate the manner in which solicitors can enter into contingency fee agreements (ie a percentage of the award) in employment claims. Barristers are still prohibited from entering into contingency fee agreements under the Bar Code of Conduct.
The new rules came into force on 9th April 2010, and the Guidance Note can be found here. The Regulations themselves are here.