I have noted on numerous occasions, mostly to myself, that sometimes technology seems to expand faster than society's ability to keep up with it, a la texting. When exactly is it appropriate to text versus to call someone? Very brief messages or question requiring a one-word response, obviously, but there are some grey areas (like when/where do you want to meet) that are really just as likely to wind up being a twenty-text conversation (no bueno, for those of us without unlimited texting).
More recently for me, it's Google chat. Is it OK to be surfing the internet while chatting with someone? To read a webcomic? How undivided is your attention supposed to be? Suddenly I have two chats going on, one about relationships and the other about Feist. I am sure this is much less virgin territory for veteran AIMers, but I was never much into that, and I feel like chatting on Google is different (and a little less formal) anyway.
Damn you, ambiguous and evolving social norms!