[dnanian]

Intel macs can boot from APM-partitioned FireWire drives: I test this all the time. It works.

Whether the G-Drive will only work on Intel macs, regardless of partitioning, I don't know. That's something you'd have to test.

I don't know whether Micromat can retain whatever OSX does to the volume on Intel to make it bootable. You can try, of course, and it would certainly get "fixed" if you updated the backup.

Hope that helps.