Reuters reports that a UK appeals court ruled that an English 18-year old who sent five million spams to a company who had fired him had indeed broken the law. The judge said that "while a computer user might consent to being sent some e-mails, that consent did not extend to receiving a barrage of such messages."
This may seem obvious, but it wasn't to a lower court, which now has to reconsider the case and what penalty to assess.