I don't know if this was directed at my comment or not, but I thought the same thing. Unfortunately, this locksmith is the one who the dealer uses. He actually is really good. (albeit slightly expensive. But those 2 words are usually synonymous) What stinks is that their policy won't allow them to cut keys that they haven't sold, even if I do find it. But if I find the key, I'm sure there are others that will cut it.
I'm definitely going to hunt down a BMW dealership and ask them. BTW my key does have the Triumph logo, so I'm sure it's what came with the bike.