Anyone working on this? I can do it, but I don't want to waste my time if someone else already started work.
Also, what are you looking for - desktop Windows client? Crossplat java client? A JS based web client? Can be designed so private stuff don't travel to a 3rd party server.
Ideally something like BitcoinQT, a cross-platform QT client. The next big project first is the proting of the chaiscript high-level api, to C++. Once that is built, building a C++ GUI should be trivial.