I'm close enough to your target age group to comment I think.
People in my age group grew up without computers; without cell phones; without blackberries; without Ipods; without the internet. So we all started learning about these things at middle age. Some of us had more aptitude than others--I took to it fairly easily for instance but then I have mad clerical skills. Some of my closest friends, family, and associates didn't fare as well even as all our kids grew up with these things and the use of them were as natural and ordinary as breathing.
Now, there are very few of my close friends my age, classmates, relatives, and associates who don't have a Facebook page or Twitter Account. Almost all of us use e-mail and instant messaging more than telephones or any other means of communication. Most of us don't understand all the high tech stuff the kids use routinely, but we're very much a part of the high speed communication age.
What there is for us to regret that does not concern the younger group at all:
The absence of written letters that had a very different character than e-mail.
The demise of hand written cards, thank you notes, and little sentiments that were filed away in keepsake boxes for posterity.
The increase in infidelity and probably broken marriages as the sometimes intimate and erotic side of internet communication made such more easy and probable.
The luxury of being incommunicado for a period of time.
Would I go back to the way it used to be? No. But there are aspects of that I wish we could have retained.
My kids send hand-written thank you notes to people. Yes, it often requires arm-twisting on my part but . . . . kids are often like that and in the end they write the note. They've all been taught to send thank you notes. Hopefully they will continue to do so down the road and hopefully they will be hand-written.
I'm still waiting for two thank you notes from two weddings I went to . . . . 25 years ago. Man, that pisses me off. I always go to great lengths to chose a gift I think the recipient(s) will like and then to not even get a note of thanks?

Oooops, I"m rambling . . . .