The motherboard has a lot of features. Here is a quote from The Register :
In fact, an insane amount of them: 12 SATA-II connectors that can run two independent RAID5 arrays, 10 USB 2.0 ports (chipset supports 20), four hardware Gigabit Ethernet chips with TCP/IP Offload engine, each one with FirstPacket marchitecture. A teaming option is also available, so you can expect to be the server and the hub on every LAN party.
This seems like a really interesting platform for firewall/router/cache server or even for actual server running web, database and application services. This motherboard would also be a great foundation for a powerful graphics workstation. According to the original article the motherboard should be released at the end of November.
I hope that the price will not be stellar :-).