Apple has quietly upgraded the Mac Pro with minor processor bumps and an increase in the standard RAM to 6GB in the least expensive configuration. The update does not include the much-anticipated addition of the Thunderbolt I/O system.
Unfortunately, it's not much of an upgrade: you can simply get a pair of six-core 3.06GHz Intel Xeon X5675 processors rather than 2.93GHz ones we just mentioned. The base model will start at $2,499 for a single quad-core Intel Xeon W3565 processor at 3.2GHz, with an optional upgrade to a six-core chip, you can spend $3,799 to get a dual-processor configuration with a pair of the Westmere-EP based 2.4GHz E5645 chips, and upgrade to the aforementioned X5675 for an unspecified amount. Everything else stays the same, it seems.
The new Mac Pro's are now available on the Apple Online Store.