According to Christina DeRosa, a general manager for XBL, XBL silver members will only be able to get three hours of Last.FM per month:

“Silver users will be able access what we’re considering a trial period of three hours a month, which comes with video advertising. Gold users will have unlimited ad-supported access, so they can use it 24 hours a day. There will also be a premium offering on a subscription basis from Last.fm, that will be commercial free and will also have more sophisticated personalization features, like Loved Tracks.”

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