Controlling Unity3D PC Application from IPAD/IPHONE

First, thanks to everyone responding to this message.

I want to remotely send UDP messages from the IPAD/IPOD (start, stop, pause the game) to the PC Game Application. Is there a way to network between the IPAD/IPOD to the PC computers?

yes, you can use the Networking tutorial to do so. all you really need is the connection GUI script out of that tutorial and a network view. Then it is easy to setup a local network connection via your IP address. You can then send RPC calls to run functions cross platform.