A Toys R Us in Maryland had a bunch of the 30005 Imperial Speeder Bike polybag sets hanging on the LEGO section endcap. I think this is the same set given out in the Daily Mirror promotion last year. Didn't see a STAP which was the other set given out. They are $3.99 and there were a bunch of them.
This may be in a different package than the UK version since it has a LEGOLAND California child ticket offer on the back.
My local TRU in Durham, NC had a box of 50. They were sitting on the front counter and the salespeople didn't seem to have any idea what to do with them. I picked up 25 and found a Chrome Stormtrooper in the clearance section, which was a nice bonus.