Very basic question...Let;s say as an example for me that I have 3 Mac's..and one iPhone.

Let's say I enter contacts and calender information on all or any of these 4 computers/device. In addition, I might add a contact directly when online in the .me account.

Is it possible for somehow all this information to be synced together..Is the example outlined above a good one and will it work?

Experimenting as we speak..

 

Yes. Use iSync, and set it to merge contacts between the computer and device.