Gilbazoid: yes, I was figuring Eyefinity would be good for tiled displays, but such a use implies that the models and shaders getting used are much simpler than the display resolution actually needs – a real mismatch of capabilities.

I bet eyefinity would be useful for visualization labs’ tiled panel displays. We have a 5×15 tiled display at UT/TACC’s visualization center being driven by 23 towers each packed with double graphics cards. It’s a little bit perverse, but if you could drive 6 displays from a single tower that would save the viz lab (or anyone else looking to build such a display) a lot of money, not only in up front machine investment but also on power to run the thing.