Hmm, lasagne does not segfault anymore, after rebooting the device... Just calmly explains that camera lens cover is closed.

One point: I prefer apps written in native Gtk+Hildon, not Qt. Just personal taste.

What about making a barcode plugin for default camera? And barcode-plugin-for-camera would in turn be extendable by plugins (like mbarcode is)? It would resolve nicely the conflict between camera and barcode-reader. Though, to avoid bloat, it could be nice to have camera-lens-cover opening choice-of-apps, instead of default-camera. Choices, choices....

Thank you. Best wishes.