I will miss RedHat client as well. Having installed and used both RedHat and Mandrake, I always believed, in spite of its 800 pound gorilla existence, that RedHat was the easiest and cleanest of Linux distros.
As for how it may affect Apple, I don't think Linux has a long life as a consumer...
The file you downloaded needs to be expanded, but I've learned from other threads that StuffIt that came with OSX doesn't do the job. Here are the things that I've heard worked for others (the first worked for me):
1. Use 'gnutar -zxvf' and then the filename (i.e. gnutar -zxvf...
Before I begin, I'm running OS X PB on an non-upgraded 9600/300 using a new mach_kernel for 604e.
That said, I have successfully installed OS X on a 4GB internal SCSI drive (Bus 0, ID 2), and it ran fine. However, I've encountered severe problems after booting back into MacOS 9. From a cold...