"10.7.3 and C2D upgraded iMac
Hi, here's my usual report about my C2D upgraded iMac 20" and OS X Lion Updates.
I'm happy to say the 10.7.3 update (installed via Software Update) does not reinstall /System/Library/CoreServices/PlatformSupport.plist and the Mac reboots smoothly.

I think sometimes we have to expect the unexpected from Apple...
Best regards, Luca P."

Thanks again Luca. (Added his report to the earlier ones on Lion w/C2D upgraded Macs in the page about (2006-08) Mac Mini Core 2 Duo CPU Upgrades. Luca has an iMac not a Mini, but have kept Lion on C2D updated iMac/Mini reports there.)
BTW - a reader sent a note on Friday (Feb 3rd) that the 10.7.3 Combo updater did reinstall the supported models plist file - so Core2Duo upgraded (original CoreDuo/unsupported) mac owners should avoid the combo update. (10.7.2 also restored the plist file as noted earlier here (w/fix) when it was released, even when it was applied via Software Update, not the combo updater.)
  

• Apple forum thread on (10.7.3) CUI errors/all apps crashes
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  (Update: On Feb 3rd Apple posted v1.1 of the update (same D/L page)
  that hopefully fixes that. A reader said it did.)
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