They also had an experimental 4K display with G-SYNC too. Scribby also posted he wants to bring it to 1440p monitors too.
Yeah, I was just curious if you had any additional info. So far it seems to only support panels that use DisplayPort. I don't know if this is because only DisplayPort allows customisation of the packets to cause the panel to only refresh a frame when it gets the right packet and to freeze while it waits. HDMI may support it, due to also being packet based, but HDMI 2.0 isn't widespread yet, and that is the only one with a decent amount of bandwidth. I'm pretty sure that DVI won't allow G-SYNC because its not packet based.
From the wiki, "Three of the (DVI) links represent the RGB components – red, green, and blue – of the video signal for a total of 24 bits per pixel. The fourth link carries the pixel clock. The binary data is encoded using 8b10b encoding. DVI does not use packetization, but rather transmits the pixel data as if it were a rasterized analog video signal. As such, the complete frame is drawn during each vertical refresh period. The full active area of each frame is always transmitted without compression. Video modes typically use horizontal and vertical refresh timings that are compatible with CRT displays, though this is not a requirement.."
I think if you wanted to change the vsync time of DVI, you would have to re-hotplug the monitor. If you tried to modify the signal somehow and just extend the blanking interval, the monitor probably wouldn't accept it. It has to go through the sync stage of starting up/hotplugging. Only packet based communications work because the panel is actively decoding at each packet and processing it, instead of dumbly, syncing and displaying raw data.
Of course Scribby wants to use it. He said he was very impressed with nVidia's demo. However, he said he was no where near as big as ASUS and therefore couldn't get the circuit modified for his panel due to the cost.