[JKT]

When you sync the item created on the desktop to the phone, it is also synched to the calendar from what I can tell, so you appear to be wrong in that regard. However, I suspect that what might not happen at present (but I haven't tested it) is that if you create an item on the desktop and don't synch it to your phone before it is due, it won't create an alert in the calendar and you won't get a notification on your desktop. Again, I think this is what is likely to happen but I have not evidence for it.