When it comes to the wealthy, the higher up you are on the asset scale, the more likely that you'll be using a mobile device of some kind to stay on top of your financial affairs.
Preliminary results from U.S. Trusts' annual Survey of Wealthy Americans found that while 32% of respondents (all of whom had more than $1 million of liquid assets) reported they used some kind of mobile device to view their financial information, for those with more than $10 million in investable assets, 52% said they viewed such information.