Thats true - just purchased a set today from Hardly Normal. The flyer in the stores says the promotion is valid until Dec 24. I dont know if it involves a redemption from Sunbeam from other stores, but HN had the grinders as well, so I picked up up both the 6910 and the 480 and got a good discount too.
My only problem at this stage is that I ended up with two 480s, as I bought one 3 weeks ago to go with my then working Aldi machine. In the meantime, the Aldi machine kicked the bucket this morning, so I ended up getting the 6910 and the free grinder. I guess the spare 480 might end up on evilbay.