Here's a nice little tidbit from Frog Design, outlining a talk Jan Chipchase delivered to the US State Department about mobile money. The talk is part of a series of discussions entitled Tech@State, part of Secretary of State Hillary Clinton's "21st Century Statecraft" initative.

Here's an excerpt:

While cultural notions of privacy vary considerably, most people assume that transactions related to money -- the details of a purchase; the balance on an account, that a bill has been paid-should be kept private. And while it's certainly true for some transactions, there is a tendency to assume that privacy is necessary for *all* transactions. More research needs to be done in this space, but I'd argue that only a few key transactions need to remain truly private, and the others could flow through less private channels.

Read the full talk, slides included, here.