<< With the ceramic CPUs this isn't usually a problem because ceramic doesn't flex so there's good support, but the new organic package has enough give that the shock from the heatsink's weight being pushed up against it from a PC being dropped, and then bounced back up again, will smash the silicon die in a heartbeat. >>
I did notice that the organic package is a lot more flexible than the old ceramics. If you take an XP in your fingers, you can flex it with your bare hands! With a ceramic package, you can't. If you were able to, you'd probably break it!
Anyway, the moral of the story seems to be: Don't ship AMDs with the heatsink installed!
Hmm, then how do OEMs ship assembled computers? Do heatsinks which attach to the MB provide enough support? Will a shim be enough added protection?