I am working on an iPhone app, that will be released by Thirsty Pocket labs, shortly. More info on this will be coming soon, along with the launch of www.thirstypocket.com. I have found that there is little research on iPhone users that are available. I did however come across this recent article. Here is a sample with a link to the full article:
While 43% of Apple (NASD: AAPL) iPhone owners earn in excess of $100,000 annually, the strongest growth in users is coming from those earning less than the median household income, particularly since the launch of the iPhone 3G, according to a new report from comScore.
