Radical approach to fixing an iPhone sync problem

If you're really stuck with an iPhone sync problem, this Macintouch advice might be useful to have on hand ...

iPhone/iPod Touch Platform: iPhone 3G S

...Regarding my problem syncing my 3GS iPhones with my iMac G5 - I finally figured out the solution by doing all of these, in order:

1) Completely remove iTunes files: http://support.apple.com/kb/HT1224
AND
2) Remove Apple Mobile Device Service files: http://support.apple.com/kb/HT1747
BEFORE rebooting. Then:
3) Reboot
4) Empty Trash
5) Reset sync history: http://support.apple.com/kb/TS1627
(ran the perl script in Terminal thus: /System/Library/Frameworks/SyncServices.framework/Versions/A/Resources/resetsync.pl full )
6) Reboot again
7) Reinstall iTunes from the current download (v. 8.2 at this time)

Lots of wizardry here, including resetting the sync history.