XiaNaphryz
LATIN, MATRIPEDICABUS, DO YOU SPEAK IT
ILM has already worked with LEC for the Force Unleashed games, it's not exactly unprecedented.well... let's say not every game studio got an Academy award winning movie special effects studio for help. Probably got some crazy pipelines over there.
I'm still curious how their work could translate to videogames though.
The only real advantage to having ILM is that they have a very capable studio to deliver high res 3D assets in a timely fashion. Other companies will have to hire a few more artists but cg type models aren't really beyond the average modeler.
I don't think ILM is providing asset support, as they haven't really done so in the past. And no, some of what the ILM artists do can't really be done by any other studio "hiring a few more artists."

R&D would be on the technical side of the house and Sony has some of the best programmers in the business.
I can't vouch for Sony, but ILM's R&D group has leading experts not just in "the business," but are among the best of the best in various fields of computer science, graphics, and engineering. I'm sure Sony has a good group of their own, particularly on the hardware side, but software wise ILM is among the best of the field, whether you're looking at industry or academics.