I own a restaurant in fort worth texas. At any given moment you can see at least 5 people surfing the web on their web enabled phones. Everything from grandmas to construction guys to soccer moms. 4 years ago the only people surfing the web on their phones were the tech geeks and power business users. The iphone has done a wonderful job of making mobile computing easy for everyone. So yes, of course business is going to follow the trends of the consumer.
Most people use the term ipod as a generic description of all mp3 players. When I was a kid most people called all videos game consoles ataris. As moble phones become even more prevelant in our lives and competition grows everything will become more universal.