derf (on irc) has written a QRcode module for maemo-barcode. It's currently a command-line test app, but it would only take a little work (like an hour or so) to plumb it into the GUI test harness we were using for the 1D and DTMX codes.

I'm afraid I'm a bit busy to do this myself (wedding coming up), but here's the code: https://garage.maemo.org/plugins/scm...=maemo-barcode

And this is the test harness (derived from maemo-camera) which you could plumb it into for a GUI app: https://garage.maemo.org/plugins/scm...=maemo-barcode (namely maemo-barcode.c or maemo-datamatrix.c)