Oh and just so you know if privnote cooperates with the feds, it wont be illegal for them to view your allegedly self destructed communications with no warrant 180 days after you send them if they argue that they are essentially E-mails. E-mails require no warrant for interception if they are on a server for longer than 180 days, and there is no law saying an E-mail provider needs to delete E-mails entirely after you select to delete them. Another little "a wiretap, but not a wiretap" loophole in the USA law.