QR Droid - QR Droid Zapper
PixBuilder - Free Photo Editing Software for PC
ZXing - Barcode Scanner for Android
PhotoDemon - Lightweight portable BSD licensed photo editor for Windows focused on performance and usability.
UpCode - UpCode is a highly developed mobile access & interaction MAI technology that turns mobile...
Fotografix - In addition to being totally portable, Fotografix has a ridiculously small footprint.