There's two versions of that though - a normal Sky+HD box becomes a (chunky) Freesat From Sky box when you cancel your subscription - and then there's another box that they farm out if somebody specifically requests Freesat From Sky - looks very similar to the Sky+ HD box but is just different enough to be noticeable.
I’m surprised they don’t just send out a regular box in the hope of customers eventually subscribing to something. Is the EPG
the same or do they remove the subscription channels?
The box actually is a regular box, the box they use for Freesat from Sky is the HD box they use for basic multiroom installs. It's the same as the standard Sky+HD box but without a hard drive and smaller, and therefore no recording or on demand functionality. If a Freesat from Sky customer decides they want to subscribe, the subscription channels can be immediately switched on the same as someone with a Sky+HD box.
The EPG is the same as all Sky customers have. The only difference I think is the HD channel swaps aren't enabled, even for the FTA HD channels.