Cheetah3D. I used it both to model and render the product logo. To my amazement it can also save a rendering as a Mac OS X icon!
The model is influenced by the look of an old-fashioned typewriter key. It’s rendered using radiosity and reflection, so that the outer edge looks something like reflective metal.
Getting the lighting and color just so for a scene is never easy. One of Cheetah3D’s advantages is, being a Universal Binary, it performs very well on my MacBook Pro. Tweaks and repeated renderings are rapid.