The Lindens have posted on the SL blogrum that the Emerald Viewer will be blocked Wednesday 9/8. See their post here: Emerald Viewer to be Blocked From Second Life
Most importantly it appears the Lab may close the accounts of those that attempt to circumvent the block.
Please be aware that attempting to circumvent our blocking to access Second Life with a banned Viewer is a violation of the Policy on Third-Party Viewers and may result in the loss of one’s account.