Makor Rishon (and NRG) have an interesting piece over the weekend of the Israeli version of the half-shabbos - religious Jews who observe Shabbos, with the minor exception of texting. The entire piece (published in full at מוצ"ש) is worth a detailed read as it not only describes the phenomenon, it also attempts to give a religious interpretation of it.
However - I wish to focus on one glaring difference between the Israeli and American versions of Half-Shabbos: In America the phenomenon is appears to be a high-school phenomenon. The Israeli version (at least as it is described) appears to be a late bachelorhood phenomenon. I haven't got a good explanation for the difference. One possible reason is that even in America the Upper West Side bachelors are texting on shabbos, but aren't talking about it. However, I'm doubtful of this explanation, as I'm sure some would be willing to talk anonymously.
As such I have no explanation to explain the difference between the Israeli and American phenomenon. Feel free to offer your explanations in the comments below!