Published by Steve Litchfield at 17:34 UTC, January 25th 2012
Even though the QML Store client is now the 'norm' and formally released, the betas continue, with v3.22.044 now supporting in-app purchases, i.e. applications can call the Store client when needed for handling payments. A few screens and links below. Of note is that this client is now built on the very latest Qt 4.7.4 and Qt quick components v1.1, both of which are baked into the upcoming Belle OS update.
More info on the changes, and download links, here:
It's not clear at this point which applications might support in-app purchases - but at least this Store client will let the appropriate developers try the functionality out.
Screenshot gallery of the installation. Comments welcome if you find an app that's available which supports the new purchasing system!