imgv is a barebone SDL-based image viewer for the Ben Nanonote. At the moment it only supports loading and showing a single image from the command line:
Can zoom, rotate, auto-fit an image (via hotkeys).
Tested with .BMP, .PNG and .JPG, but should should support the following formats:
BMP, GIF, JPEG, LBM, PCX, PNG, PNM, TGA, TIFF, XCF, XPM, XV
Using is with large images (i.e., larger than 1 megapixel) is not recommended due to CPU and memory constraints on the Ben: it becomes quite slow.