Notes app

[Topsel]

Hi everybody, here is a strange situation that happened to 2 of my close friends. One of them bought iPhone 4 about a year ago and during that time he generated a lot of notes, the other friend and a business partner of the first friend used to have a bb which he just yesterday accidentally dropped into a toilet. Today he went out and bought iPhone 4S. Both of them met in their office and logged in to the same wifi network. Both guys are not too "technical" as both of them are over 50. Here is the interesting part, within 10 minutes of starting the brand new phone and without any kind of syncing through a computer or any other means all notes that the first friend had somehow synced with the brand new phone. How is that possible? And only notes were synced, contacts and all other stuff did not sync. The older phone still runs pre OS5 the new phone I assume runs OS5.
Any ideas?
Great thanks in advanced.

[Sponsors]