Yeah, different cut and different*ly* cut respectively.
The difference between UK ribs and US ribs is twofold also:
-Their beasts are bigger
-They tend to cut a large portion - sometimes all - of belly along with the rib, whereas a UK butcher will cut the belly to sell separately as it's more profitable here.
If you are lucky enough to have a good butcher, ask them to cut you a meaty rack of ribs with a lot of belly meat on them.
I am very lucky in that I have half a pig on order from a friend's farm, and my butcher is going to butcher it for me to my personal spec, and brine the ham for me - for free! I'll have to give him some smokey treats for it
