ZOTAC announced a new GTX460 variant the 3DP, which is capable of driving up-to four displays with the maximum resolution of 6400×1200. It comes with one dual-link DVI for single QXGA displays (2560×1600), three DisplayPorts, slightly raised clocks (710/1420/3600MHz) and 1GB of GDDR5 memory onboard. *With this card there is no need for a second graphics card to setup a multi-display configurations. Sounds like a nice alternative to HD5850 Eyefinity setups I think, although maybe a 2GB version of this card might have been more capable at high multi-display resolutions. Who knows maybe ZOTAC will do that one too.
*Update: One important piece of information was missing from our little summary.