Well, the word is that triumph put SAI in it just like they do in all thier bikes but as the bike came close to being released they realized it was passing all emissions by such a wide margin it didn't need to have SAI. So they disabled it on the initial run then supposedly removed the hardware altogether later on. As to your's being a '10, I got mine in 6/09 and it is a '10 on paper. So when i say the removed it on the '10's it means those made for the 2010 model year. But thats the word on the net....could mean they removed it "at some point in 2010", who knows.
anyways, the fact the bike runs so much cleaner than they expected is why they supposedly never enabled it. I'm still not sure how true it is that none were ever enabled tho for several reasons.