Oh yeah, the XServes were updated, too

In the midst of all the Mac Pro frenzy, the other update that Apple released today, an update to their XServe was largely overlooked. The new XServes were updated with the same architecture as the new Mac Pros. The standard configuration is as follows [from Apple.com].

• One 2.8GHz Quad-Core Intel Xeon 5400 series processor
• 2GB (2x1GB) 800MHz DDR2 ECC fully buffered DIMMs
• 80GB 7200-rpm SATA Apple Drive Module with 8MB cache
• Dual Gigabit Ethernet
• Internal Graphics
• Two FireWire(R) 800 and three USB 2.0 ports
• Unlimited Client License for Mac OS X 10.5 Leopard Server

There are some huge expandability options here, most notably up to two 3.0 GHz Quad-Core Xeons, 32 GB of RAM, and up to a 300 GB, 15,000 RPM Hard Drive.

Read [Apple.com]