If you signed up to take part in the PlayStation Now beta and live in the UK, start checking your inbox. Sony is starting to send out invites to access the PlayStation Now closed beta, allowing you to try out the service before the full launch this summer.
The email (below) explains the service so:
PlayStation Now is an exciting new game streaming service featuring instant access to a library of popular PlayStation 3 titles with no downloads or trips to the store required.
The email states that a PS3 is required with a 5Mbps or higher broadband connection.