HT4191: iOS: Syncing NotesLearn about iOS: Syncing Notes
Currently Being ModeratedJan 14, 2013 2:27 PM (in response to bobo..4)
I believe it is not possible. Notice the HT4191 article you attached that deals with syncing notes says at least an iPhone 3GS is required.
If there's any hope of syncing to gmail, you would find it in Settings > Notes and try to set a gmail account there.
I don't think it's possible.