The official site sends word of a new interview with Jake Rodgers, art director for Verant's soon to be classic, at fan site, SlicerHQ.  Here's a bit:

8. Biggest challenge thus far in this project?

A few things, but probably the most difficult is managing the sheer number of assets we are creating. We have thousands and thousands of pieces that need to fit together. Once they are in the game, they have to look good, and even more importantly the game has to run! The balance between quality, quantity, and speed (frame rate) is basically impossible to get 100% right- you have to pick two. We keep trying to pick all three, then we keep landing soundly back in reality. The struggle to find this balance for all the art assets is probably the biggest, and most persistent challenge.

Also, don't miss viewing the new 360 screenshot that's been added to the official site.  You can check it out here.