iPhone 3Gのバックアップをオフにする

同期前のbackupが時間かかるのでoffにしてみる
最後にバックアップしとこ
やっぱ長い・・・・

Quit iTunes.
Open Terminal.app
Copy and paste this in, then hit return:
defaults write com.apple.iTunes DeviceBackupsDisabled -bool true
Open iTunes
Plug in your iPhone (running iPhone firmware 2.0 or iPhone 3G) and sync.

Changing the 'true' in step 3 to 'false' and running it again will re-enable the backup feature.