Finishing off a presentation for a screen-cast next week and wanted to check I had a date right (well it is Friday) and found the post below in draft. So, despite it being the end of the second month of 2010, a couple of ethics opinions released in 2009 and some links to resources on other ethics opinions:
In June 2009 West Virginia Lawyer Disciplinary Board released its ethics opinion on document metadata finding that there is a burden on an attorney to take reasonable steps to protect metadata in transmitted documents.
As reported in October 2009, this was followed by the Vermont Bar Association issuing an opinion on metadata.
The ABA has a table of the opinions that it maintains (last updated Sept 2009 at the time of writing). The LegalEthics website is another good source.