Leopard and 10.4.11 - update and appeal

I just tried 10.4.11 on my Power PC Mac, and it doesn't fix the GPS-CS1 support issue.

Has anyone tried this software update on an Intel machine? Can you still use the GPS-CS1 (assuming you were running Tiger 10.4.9 or 10.4.10)?

Also, I gather there is a Leopard update (10.5.1) out there. No Leopard user - Intel or Power PC - was able to use the GPS-CS1 so has this update changed matters?

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