Yep, architecture by SOM. Just checked their site, their info is slightly different from ARUP's (always nice to have the architects and engineers not talk to eachother!)
Project Facts
Year Completed: 2007
Site Area: 36,421 m2
Project Area: 280,000 m2
Building Height: 330 m
Number of Stories: 85
(source: som.com)
Their rendering seems slightly more up to date:
(source: som.com)
They also have quite a few close ups, fortuitously also one of the top of the building, which I hadn't seen before, looks nice, not overdone like most places here:
(source: som.com)
A few more shots can be found on
their site (direct link).