iPods won't sync in iTunes, always some error about sync session failed!!!! -___-
and in console it says something like grappa host init failed or something

I had the same problem today after restarting my mac. iTunes started when I plugged in my ipod.

I got them to sync by unplugging the ipod, quitting iTunes, and then starting iTunes before I plugged in my iPod again.

hth

I once had that problem with my iPhone 3GS, after changing the smbios.plist on my Xeon E3 Workstation...

..deleting ~/Library/iTunes did the trick.

---

AMD FX 4100
MSI 760GM-P23
Radeon HD6570
OS X Lion Retail 10.7.5
Lion Kernel Project