I've been using a twitter application for the iPhone called Twinkle for the past few days.
Occasionally, it can't connect to twitter (surprise!). When that would happen, I would notice an orange triangle in upper left corner with something inside it. I didn't really bother to figure out what that "something" was.
Yesterday while on the train home, I finally figured it out: the Fail Whale Tail! Brilliant!
[tags]twitter, Fail Whale, Twinkle, iPhone, Social Networking, Social Media, Microblogging, Lifestreaming, Creativity, Humor, Funny, Clever[/tags]