Xbox announced at E3 that there were going to be more details about their partnering with Last.Fm and here they are! Xbox Live Silver users can now access Last.fm, but only for limited time. How much limited time you may ask? Three hours a month. If you have a Gold account you will have unlimited access to Last.fm streaming. But, of course since you aren't paying Last.fm you will have to sit through ads and video advertising. If you want to stream Last.fm on your Xbox with no ads indefinitely, head over to Last.fm and sign up for the service, which is a whole $3 a month.