As far as openness and transparency goes on the Tax-Haven front, we shall have to wait and see. In the meantime we can rejoice a little that not everybody is waiting...
Offshore Leaks app puts secret users of tax havens in the public eye
Interactive database forming part of a cache of 2.5m leaked files has been launched by Washington-based ICIJ
"An interactive database allowing users to search more than 100,000 secret companies, trusts and funds created in offshore tax havens including the British Virgin Islands has gone online.
The data, part of a cache of 2.5m leaked files that has already led to a series of exposes of the offshore financial sector by the Guardian and other global media organisations, has been launched by the Washington-based International Consortium of Investigative Journalists (ICIJ)..."
http://www.guardian.co.uk/technology/2013/jun/15/database-app-icij-tax-havens
P.S.
I have used the online 'app', inputting the names of LLPs from a list in a recent Private Eye, but with no success.