Syncing Notes through iCloud requires you to set up the iCloud Mail service. They do not sync with the Mail app on a Mac computer unless it is also through the iCloud Mail app. Hopefully this will change on Macs with Mountain Lion which should have stand alone Notes and Reminder apps.
__________________
64GB iPad 3, 32GB iPhone 4, 1G 16GB touch, 4G & 6G Silver 16GB nano, 5G 60GB iPod, 1G AppleTV, 2G ATV, 2.5GHz 17" MacBook Pro
|