I dont have answers. All I can tell you I am a realist and see the problem and totally get it.
Until people totally get the problem that shabbos is just not as fun for some as texting, video games, Ipods, Ipads etc there will be no solution.
And comments that people make and act only make it worse. People do not understand that some teens just dont like sitting at the table with the family singing Zemiros and saying Dvar torahs.
I am not opposed to the computer, but it should be given with conditions, like he must go to School and earn it maybe pay for part of it himself