According to reports from Twitter, the music subscription service Rdio, appears to have secretly launched in the U.K. and France. While Rdio has yet to chime in on the subject, users in those locations are now able to sign up for a free 7-day trial of unlimited listening. Everything seems to work, although I’m hearing quite a few people in the U.K. are unable to stream or download a significant number of albums (probably why we haven’t heard an official announcement from Rdio).