After syncing my iphone my notes have all disappeared. I didn't notice right away so I synced again later. Does that mean they are gone forever? I'm afraid I missed my opportunity to restore.
If you are syncing to a PC they may be gone. You don't mention what system you are syncing to, however...
I don't know how it works on the Mac, but with the iPhone/PC connection, it's not really a sync. The notes content on a PC simply overwrites the notes on the iPhone.
You can create them on the PC, and then they are copied to the iPhone upon 'sync'. If have a note that is on both the PC and the iPhone, and you update the iPhone copy of the note, it will be overwritten by the (presumably older) PC copy.
This is, of course, Bad.
Based on this operation, I expect that if you have notes on the iPhone, and no notes on the PC, the 'blank' notes database will likely overwrite (effectively erasing) the notes database on the iPhone.
O also recently saw this and lost nearly a year of notes I was taking over the course of a years travel and observations for various projects for the future. It is frankly a disaster and I can't believe there is no way to recover these notes.
Is there a way to sort of historically go back and get them back via some mechanism at apple?
This has never happened to me. The latest copy of whatever I do in notes is synced. If I make a change on the iPhone, it is changed on the PC and vice versa. I use Outlook 2007 on Vista with an iPhone 3G running 3.1.3. What do you have Notes set to sync with in iTunes?