According to
AppleInsider, the Developer Transition Kit system presented by Steve Jobs when he has announced the shift to Intel is already available for some of the developers designing software for Mac.
The system, called Apple Development Platform (ADP 2.1) contains a 3.6 GHz Intel Pentium 4 processor with
2 MB L2 Cache and 512 MB RAM 533 DDR2. The system supports up to 1 GB of memory, being fitted with 4 slots.
For the system's graphics solution, Apple has chosen the Intel Graphics Media Accelerator 900 (GMA 900), but apparently there's no standard configuration for the systems.
The way in which Apple chose the PCI interfaces' layout is a very interesting one, the system also supporting PCI Express.
The storage function is assured by a 160 GB SATA hard disk and a DVD-RW optical unit connected through an ATA interface.
As for connectivity, the system offers USB ports, FireWire and a Gigabit Ethernet connector.
The system is delivered with a mouse, keyboard and a DVD containing the Mac OS X 10.4.1 for Intel. For more details regarding the system and what happened when someone attempted to run Mac OS X 10.4.1 for Intel on a PC, read the article from AppleInsider, where you'll also see some pictures of the actual system.