I have question about acess pocket PC (PPC) wirelessly.

The PPC runs windows CE 3.x and has internet connection through GPRS. An application on my desktop PC is neccessary to send message to the ppc, suppose the IP address of the pocket PC is known. Both of the applications on desktop PC and PPC are on .Net platform.

Is that possible and a good idea to build a Web service on the PPC so that the local application may send message through it? Or there is better idea?

Any advice would help!