Xsan 2 unleased

It's something to do with servers. I can't be bothered to read the gumph, but I'm sure that it's an improvement on Xsan 1. It would have to be, really. There'd be no point in releasing Xsan 2 if it wasn't.
I'm going to be lazy and cut & paste from the PR email:
"Apple® today introduced Xsan® 2, the first major upgrade to its easy to use, high performance, enterprise class Storage Area Network (SAN) file system for Mac OS® X. Combining enhanced performance with Apple’s legendary ease of use, Xsan 2 makes it easier for first time users to set up and quickly deploy a SAN; introduces MultiSAN, allowing users on a single workstation to access multiple SANs at the same time; is fully integrated with Mac OS X Leopard™ and Mac OS X Server Leopard and is now qualified to work with third-party RAID storage.
Administration tools have been completely redesigned in Xsan 2, making it easier than ever to set up and manage a SAN file system. Xsan 2 intelligently handles different data types, file sizes and usage scenarios for ideal performance. For example, administrators have the ability to pre-set volume workload settings for optimal streaming of all file types, from very large files, such as uncompressed HD video to small data center files. Xsan 2 includes a new feature, MultiSAN, for users who need to access multiple Xsan volumes from the same workstation or server, such as in newsrooms with separate SAN volumes for production and broadcast.
Xsan 2 is fully integrated with Mac OS X Leopard and takes complete advantage of core Mac OS X features, such as Spotlight™ to search across multiple SAN volumes. Xsan 2 also works seamlessly with Server Assistant in Leopard Server for easy setup and configuration of SAN volumes. Leopard Server features, such as iCal® Server, Mail Server and Podcast Producer, can now integrate with Xsan 2 to support clustered file systems, improving performance and scalability and reducing the impact of a service outage from the loss of any one server.
For the first time, Xsan 2 has been qualified with third-party RAID storage hardware. Along with Apple’s Xserve® RAID, Xsan 2 supports third-party RAID solutions from Promise Technology in configurations tuned and optimised for Xsan, Mac OS X Server and Apple’s professional applications.
Pricing & Availability
Xsan 2 is available immediately through the Apple Store® (www.apple.com/ukstore) and through Apple Authorised Resellers for a suggested retail price of £699 (inc VAT) per node."