What’s the point of twitter in business?

It seems that everyone has heard of Twitter. Even my dad was asking me about twitter and he’s a technology dinosaur, in fact my Dad said yesterday, “If the internet comes anywhere near me, I’m going to hit it with my walking stick.” I understand it’s now the law to follow Stephen Fry on twitter and discuss the interesting facts and links he turns up. Twitter seems to be a good way of sharing information. However, our customers ask, “how can Twitter get us more customers? How can it help our business?”