The Katana offers 12 blades inside the 4u enclosure with two processor sockets per blade. The Katana apparently provides a lot of flexibility, having the ability to configure each blade with both Intel Xeon and AMD Opteron processors simultaneously.
If you're after a Katana 4100, expect to dish out $9,999 for a four-bladed enclosure, and you can get your hands on one come the 22nd of this month. µ
It's time for our regular two-step through the Google news
Bug bounty offer: accepted