Technology is great, especially when it helps you tell a story. And, the iPhone is really good at it...I think superior to my old Blackberry. One of the things I like to do is use my iPhone to show people pictures...it's like having a portable brochure or portfolio. I use it in the lobby, on a plane and even when I'm hosting a BBQ for my neighbors. I can imagine sales staff, concierge or anyone with an opportunity to spread the word using this tool.
I'll share other uses as I stumble onto them. Meanwhile, if you have any ideas, please pass them along.