PS3 'Qriocity' music service available in US today
There are two options: a "Basic" service and a "Premium" service. Both offer commercial-free music and multiple genre-based channels, but "Premium" offers more channels and the ability to listen to specific songs on demand.
The service will be available for PS3, Bravia TVs, Blu-Ray players, and VAIO PCs "later this afternoon," with versions for other devices including PSP coming soon. If you somehow don't have enough ways to listen to streaming music, or aren't satisfied with the short name of your existing service, check out the preview video after the break and see if Qriosity is for you.