From the Web site:
"Midway-Studios Austin has exciting opportunities for Level Layout Designers to apply their specialized skills on a high profile, next-generation first-person shooter using the Unreal 3 engine. You will be instrumental in visualizing game levels, and working under the direction of the Lead Level Designer. You will work within a level strike team, with a scripter, an audio implementer, and environment artists, to turn your dream into a reality."
Up until this point, it could not be determined whether or not the Nintendo Revolution would have the technical capacity to handle Epic Games' Unreal 3 Engine. However, given that Midway is planning development of this game on all three next-generation platforms utilizing the middleware, it would seem Nintendo's next console does have the ability to handle Unreal 3. Of course, this comes without official confirmation from Nintendo.
The job listing page can be found here.
Stay tuned to Revolution Report for more details on Midway's games as they come to fruition.
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http://www.revolutionreport.com/articles/read/280
So, it is very likely that the Rev will look better than the GBA.