and is also playing as background music on the same website.
It sounds like it may have been composed by David Holmes, who has done the rest of the soundtrack (as well as Ocean's 11 and 12) but it isn't on the OST CD http://www.hyfntrak.com/oceans13/fromafriend/
I'm not sure about that trailer, but the TV spot #3 (search on YouTube) used music by Chris Joss. The song is called "The Suitcase" and you can hear on his website (look for the link to the HTML version of the site to download the song).
I'd also like to know who did the music to this trailer, though.