OS X makes the world a better place to live in. Especially when it comes down to panther. I could install .LRN one minute faster than on Linux. But maybe this is just to the convenience of me knowing how to make most use of the user friendliness of OS X.
But that does not help the RedHat people. For them I'd suggest to assume that RH is going to provide an upgrade path (everything else would not make a lot of business sense for them). If they fail to do so in due time, I'd switch to SuSE Enterprise (if you need this extra feeling of good support, now with Novell enhancement) or start with Debian.
