From what I can figure out iwallet (app) is still at version 4.2 and strangely enough doesn't show on their products page as an app they have. Multiplex could be dead as there is no real info about version 1.2 since september 2009 and as you say the forums are spammed mess. My guess is they both could be dead or simply on hold. With iwallet they have a couple of twitter id's which may help get some further info if they still use them.
9/23/10 at 6:53pm