[Aiwa]

I'm working in a program, but i also have many doubts about it and hopefully you guys can help me with that...

This program would basically just sit there, and have a list of "names" or whatever...it would wait until it receive some kinda of "data", from a Computer, or from another phone... the only way i thought about doing it was to use sockets
i would make an app, for the phone to receive data...i would make another app for the computer to send data...and i would make another app for other phones to send data...
Now first i wanted to know if that is possible? or if there is any other way i could do it without using sockets?
and the phone, sinse it's connected to the internet, does it have an personal IP? or how do i find the phone using a computer?

hope someone can help me... ._.