iPhone notifications on a local network

I would love to be able to access my iPhone's status from any computer that's connected to the same WiFi network as my iPhone.

Have a window that would show me if anyone has called, allow me to play back any voicemails, send/receive text messages, etc. Hell, why not be able to make and receive phone calls directly from a computer, using the built-in mic and speaker and some sort of tethered connected to the iPhone?

The Apple TV should also support this in some way.

That is all.