The official Wikileaks Twitter account has just tweeted the following official statement:
Tweeters currently online are expressing vehement outrage at the prospect of relinquishing their right to deny the U.S. government access to their IP addresses, banking details, connection records, email addresses or other private information. Talk of a class action law suit is already under way and a #ClassActionWL thread has been initiated. In most cases, anonymous Tweets are not considered official sources, but it seems an exception must be made in the present case, given that users are the very parties involved.
Users unfollowing the Wikileaks Twitter account at this time will not be exempt from the order, which seems to apply to users having received Wikileaks tweets in the past:
Too late to unfollow; trick used is to demand the lists, dates and IPs of all who received our twitter messages. (Source)
Updates on any forthcoming press releases and public statements will be posted here.