Sapphire shows off 3GPU setup with R600 boards
 

What makes this setup interesting is that these three cards are not connected in TriFire, yet all three GPUs are working together. This is thanks to the bandwidth available with PCIe 2.0, since the 16 lanes are efficiently doubled up. Whether future cards will come with bridges or will they become thing of the past, it remains to be seen.
http://www.theinquirer.net/gb/inquir...ws-triple-r600