I received my Developer Transition Kit today. Here are some quick observations and photos.

The Developer Transition Kit (officially called “Apple Developer Platform”) looks exactly like a G5 until you open the case. Instead of heat sinks that occupy the entire width of the case, you’ll see what looks like a standard ATX motherboard with most of the case empty.

When you boot it for the first time, it runs the standard OS X setup assistant and feels exactly like a regular Macintosh (but much faster than any I’ve used). The only indication that it’s anything other than a standard Mac is the CPU information in ‘About This Macintosh’

System Profiler reveals a bit more. The machine identifier is “ADP2,1″.

The Finder’s Get Info window now tells whether an application is PowerPC or Intel. After trying out my application under OS X, I decided to experiment a bit more.

Holding down F1 while starting up displays a standard PC BIOS setup screen. The big test would be whether x86 Linux runs on it. I booted a Knoppix X86 live CD. It booted normally, but X11 wouldn’t work unless I used the laptop frame buffer mode. This isn’t the latest version of Knoppix, however.

You can see more photos here.