I don't yet think that most of
us are using information technologies to their full potential.
That being said, I can clearly mark the differences between how I was taught to perform thought functions growing up and how I do them now. The calculator on this iPhone and the scientific ones I access via hotkeys on my mac and of spring to mind. It is second nature to whir my hands across a keyboard to get a precise answer to a numeric problem than to try to calculate in my mind a best guestimate.
When I read something I want to access later, it goes into a bookmarking service. Or, I know easily the keywords to google it to find it later.
The most remarkable thing has been having my iPhone. Though its a cliché by now, having the internet in my pocket has been remarkable. I have near instant access to all of the world's information anywhere I am.
I definitely fall on the side of wannabe singulitarian, but even disregarding that, I see the increasingly powerful portable computation we carry with us as a positive sign we are increasingly incorporating computation into our sense of self and consciousness.