I think the idea of a Unity benchmarking tool is good, but it doesn’t need to be like futuremark, indeed if that’s what you want I don’t see why you couldn’t just appropriate something like Angry Bots demo for that.
What I think would be better are some simple gpu tests for fillrate, transparency, x number of skinned meshes, geometry batching. The difference being that this would keep the benchmark simple and have a small file size. Ideally with a means to upload the results to a central server. I wonder if someone were able to come up with a benchmark test if UT would be willing to provide the server backend since they would benefit from the results.
Of course such benchmarks are only of use relative to each other. They wont tell you how well your game will run, but they should give you some idea of expectations.
Could be useful if there is a highly detailed breakdown of everything in a way that can be applied to any project to get a good feel for projected performance.
Unity themselves probably already has all this data.